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137 human genomes from the Middle East fill gaps in human history

CELL PRESS—Whole-genome sequencing efforts around the world have offered important insights into human diversity, historical migrations, and the relationships between people of different regions—but scientists still don’t have a complete picture because some regions and people remain understudied. A new study reported in the journal Cell on August 4 helps to fill one of these big gaps by generating more than 100 high-coverage genome sequences from eight Middle Eastern populations using linked-read sequencing.

“The Middle East is an important region to understand human history, migrations, and evolution: it is where modern humans first expanded out of Africa, where hunter-gatherers first settled and transitioned into farmers, where the first writing systems developed, and where the first major known civilizations emerged,” says Mohamed Almarri of the Wellcome Sanger Institute, UK. “However, despite this importance, the region has been historically understudied in genomic studies.”

In the new study*, Almarri, Marc Haber (@MarcHaber, University of Birmingham, UK), and their colleagues sequenced 137 whole genomes from eight Middle Eastern populations.

By generating the most comprehensive resource of human genetic variation in the Middle East using a new sequencing technology called linked-read sequencing, the researchers were able to reconstruct the genomic history of the region with unprecedented resolution. The researchers say that some of the events recorded in the Middle Eastern genomes could be linked with what’s known from archeology or linguistics, such as the invention of agriculture and the spread of Semitic languages. But other events can only be elucidated by studying the DNA of ancient and modern people who lived in the region.

Some of their most notable findings include the following:

  • The identification of 4.8 million new gene variants that are specific to Middle Eastern populations that could now provide the basis for future research.
  • Genetic variants that show evidence of selection—in other words, mutations that spread unusually quickly—potentially due to adaptation to the changing environment and lifestyle.
  • In the Levant, where agriculture was first developed, populations experienced a massive growth around the transition to agriculture that wasn’t paralleled in Arabia.
  • Arabian populations suffered a severe population decrease around 6,000 years ago, which coincides with the change in climate in Arabia turning it from a green, wet region into the largest sand desert in the world today.
  • Middle Easterners descend from the same population that expanded out of Africa 50,000 to 60,000 years ago.
  • Arabian groups have significantly lower Neanderthal ancestry than other Eurasians, potentially caused by excess basal Eurasian and African ancestry in Arabians that depletes their Neanderthal ancestry
  • The movement of populations during the Bronze Age potentially spread the Semitic languages from the Levant to Arabia and East Africa.
  • An increase in the frequency of variants associated with type 2 diabetes in some populations in the past 2,000 years, suggesting that variants that were beneficial in the past are today associated with diseases.

“We found 4.8 million variants that were not previously discovered in other populations,” Haber says. “Hundreds of thousands of these are common in the region, and any of them could hold medical relevance.”

“Our study fills a major gap in international genomic projects by cataloguing genetic variation in the Middle East,” says Chris Tyler-Smith of the Wellcome Sanger Institute, UK. “The millions of new variants we found in our study will improve future medical association studies in the region. Our results explain how the genetics of Middle Easterners formed over time, providing new insights, which complement knowledge from archeology, anthropology, and linguistics.”

The researchers say they will now follow up on variants that show evidence of selection. Through these continued studies, they hope to further understand the biological effects of those newly found variants while further refining the genetic history of the region.

Article Source: CELL PRESS news release.

*Almarri et al.: “The Genomic History of the Middle East” https://www.cell.com/cell/fulltext/S0092-8674(21)00839-4 

Cover Image, Top Left: Genome sequencing has been key to understanding much about the human past. Image Kennethr, Pixabay

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Neanderthals indeed painted Andalusia’s Cueva de Ardales

CNRS—The origin and date of appearance of prehistoric cave art are the subjects of ongoing debate. Spain’s Cueva de Ardales is one point of discussion. There a flowstone formation is stained red in places. This coloring is apparently almost 65,000 years old but until now, a part of the scientific community attributed it to a natural coating of iron oxide deposited by flowing water. However, that hypothesis has just been rejected by the findings of an international team of scientists including a CNRS researcher. The team members analyzed samples of red residues collected from the flowstone surface and compared them with iron oxide–rich deposits in the cave. They concluded that the ochre-based pigment was intentionally applied, i.e. painted—by Neanderthals, as modern humans had yet to make their appearance on the European continent—and that, importantly, it had probably been brought to the cave from an external source.

Furthermore, variations in pigment composition between samples were detected, corresponding to different dates of application, sometimes many thousands of years apart. Thus, it seems that many generations of Neanderthals visited this cave and colored the draperies of the great flowstone formation with red ochre. This behavior indicates a motivation to return to the cave and symbolically mark the site, and it bears witness to the transmission of a tradition down through the generations. The scientists’ findings have been published in PNAS on 2 August 2021.

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Flowstone formation in the Sala de las Estrellas at Cueva de Ardales (Malaga, Andalusia), with the traces of red pigment analysed and discussed in the article. © João Zilhão, ICREA. 
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Article Source: CNRS news release

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Exploring blood types of Neanderthal and Denisovan individuals

PLOS—An analysis of the blood types of one Denisovan and three Neanderthal individuals has uncovered new clues to the evolutionary history, health, and vulnerabilities of their populations. Silvana Condemi of the Centre National de la Research Scientifique (CNRS) and colleagues at Aix-Marseille University, France, present these findings in the open-access journal PLOS ONE on July 28, 2021.

Neanderthals and Denisovans were ancient humans who lived across Eurasia, from Western Europe to Siberia, from about 300,000 to 40,000 years ago. Previous research efforts have produced full-genome DNA sequences for 15 of these ancient individuals, greatly enhancing understanding of their species. However, despite being encoded in DNA, these ancient individuals’ blood types have received little attention.

In the new study*, Condemi and colleagues investigated the previously sequenced genomes of one Denisovan and three Neanderthal individuals (ranging from 100,000 to 40,000 years ago) in order to determine their blood types and analyze the implications. While 43 different systems exist for assigning blood types, the researchers focused on seven systems that are often used in medical settings for blood transfusions.

This analysis of the four individuals’ blood types revealed new information about their species. For instance, the ancient individuals had blood type alleles—different versions of the same gene—in combinations that are consistent with the idea that Neanderthals and Denisovans originated in Africa.

In addition, a distinct genetic link between the Neanderthal blood types and the blood types of an Aboriginal Australian and an indigenous Papuan suggests the possibility of mating between Neanderthals and modern humans before modern humans migrated to Southeast Asia.

The Neanderthal individuals also had blood type alleles associated with increased vulnerability to diseases affecting fetuses and newborns, as well as reduced variability of many alleles compared to modern humans. This pattern is in line with existing evidence that links low genetic diversity and low reproductive success with the eventual demise of Neanderthals.

Overall, these findings highlight the relevance of blood types in understanding humans’ evolutionary history.

The authors add: “This work identifies the blood group systems in Neanderthals and Denisovans in order to better understand their evolutionary history and to consolidate hypotheses concerning their dispersal in Eurasia and interbreeding with early Homo sapiens.

The results of the Groups system analysis of Neanderthals and Denisovans confirm their African origin as well as the weakness in their fertility and susceptibility to virus infection leading to a high infant mortality rate.”

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Erythroid blood group distribution from Denisova and Neanderthal archaic genomes. Branching matches nuclear DNA tree topology [43]. Blue, Neanderthal lineage; red, Denisovan lineage. Made with Natural Earth. Free vector and raster map data @ naturalearthdata.com. Condemi et al, 2021, PLOS ONE (CC-BY 4.0, https://creativecommons.org/licenses/by/4.0/)

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Homo neanderthalensis adult male. Reconstruction based on Shanidar 1 by John Gurche for the Human Origins Program, NMNH. Date: 225,000 to 28,000 years. John Gurche,  CCO Universal Public Domain, Wikimedia Commons

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Article Source: PLOS news release

*Condemi S, Mazières S, Faux P, Costedoat C, Ruiz-Linares A, Bailly P, et al. (2021) Blood groups of Neandertals and Denisova decrypted. PLoS ONE 16(7): e0254175. https://doi.org/10.1371/journal.pone.0254175

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Bronze Age cemetery reveals history of a high-status woman and her twins

PLOS—Ancient urn graves contain a wealth of information about a high-ranking woman and her Bronze Age Vatya community, according to a study published July 28, 2021 in the open-access journal PLOS ONE by Claudio Cavazzuti from the University of Bologna, Italy, and Durham University, UK, and colleagues.

People of the Vatya culture that flourished during the Hungarian Early and Middle Bronze Ages (approximately 2200-1450 BCE) customarily cremated the deceased–making the human remains difficult to analyze from a bioarchaeological perspective. In this study, the authors used new osteological sampling strategies to learn more about the people buried in the urnfield cemetery at Szigetszentmiklós-Ürgehegy, one of the largest Middle Bronze Age urn cemeteries in Central Hungary.

Cavazzuti and colleagues analyzed human tissues from 29 graves (three whole burials, or inhumations, and 26 urn cremations) and applied strontium isotope comparison techniques to test if sampled individuals were local to the geographic area. For the majority of sampled graves, each contained the remains of a single individual and simple grave goods made of ceramic or bronze; however, gravesite 241 was of special interest: this grave contained an urn with the cremated remains of an adult woman and two fetuses, buried alongside prestigious grave goods including a golden hair-ring, a bronze neck-ring, and two bone hairpin ornaments.

Though the three inhumed individuals were poorly preserved, the authors were able to confirm these had been adults, though they couldn’t determine the sex. Of the 26 cremated individuals, seven appeared to be adult males, 11 adult females, and two appeared to be adults whose sex couldn’t be determined. They also identified children’s remains: two individuals likely 5-10 years of age, and four individuals ranging from 2-5 years of age–the youngest present aside from the twin fetuses buried with the adult woman in grave 241, which were approximately 28-32 gestational weeks of age. The authors believe the woman in grave 241 may have died due to complications bearing or birthing these twins. Her remains indicate she was 25 to 35 years old at her time of death and the remains were especially carefully collected post-cremation, as her grave exhibited a bone weight 50 percent higher than the average sampled grave. The strontium analysis also revealed she was likely born elsewhere and moved to Szigetszentmiklós in early adolescence, between the ages of 8-13. One other adult woman also appeared non-local to Szigetszentmiklós, with the adult women in general featuring a more varied strontium isotope composition than the adult men, whose isotopes were concentrated in an especially small range–even narrower than those of the children analyzed in the study.

The authors note their findings at the Szigetszentmiklós urnfield reinforce evidence that women, especially of high rank, commonly married outside their immediate group in Bronze Age Central Europe–and confirm the informative potential of strontium isotope analyses even for cremated remains.

The authors add: “Thanks to a wide spectrum of new bioarchaeological methods, techniques and sampling strategies, it is now possible to reconstruct the life-histories of cremated people of the Bronze Age. In this case, the authors investigate the movements and the tragic events of a high-status woman’s life, settled along the Danube 4000 years ago, in the territory of modern-day Hungary.”

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Left: Bone assemblage from burial n. 241a (adult female individual). Right: Bones attributable to both foetuses (n. 241b and 241c). Cavazzuti et al, 2021, PLOS ONE (CC-BY 4.0, https://creativecommons.org/licenses/by/4.0/)

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Grave goods from burial n. 241: 1. Bronze neck-ring (Ösenring); 2. Gold hair-ring (Noppenring); 3. Bone pins/needles (Knochennadeln). Cavazzuti et al, 2021, PLOS ONE (CC-BY 4.0, https://creativecommons.org/licenses/by/4.0/)

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Article Source: PLOS news release

*Cavazzuti C, Hajdu T, Lugli F, Sperduti A, Vicze M, Horváth A, et al. (2021) Human mobility in a Bronze Age Vatya ‘urnfield’ and the life history of a high-status woman. PLoS ONE 16(7): e0254360. https://doi.org/10.1371/journal.pone.0254360

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Thomas Cromwell’s Tudor London mansion revealed in unprecedented detail

TAYLOR & FRANCIS GROUP—The magnificent London mansion of Thomas Cromwell has been revealed for the first time in an artist’s impression, following a new study which examines the building in unprecedented detail.

Dr Nick Holder, a historian and research fellow at English Heritage and the University of Exeter, has scrutinized an exceptionally rich source of information, including letters, leases, surveys and inventories, to present the most thorough insight to-date on “one of the most spectacular private houses” in 1530s London.

Published in the peer-reviewed Journal of the British Archaeological Association, his findings* – which have informed the artist’s impression created by illustrator Peter Urmston – include floor plans for the mansion, which had 58 rooms plus servants’ garrets, and a large garden.

The plans have been released before but the evidence behind them hasn’t been presented until now.

Together with an accompanying room-by-room analysis of another of Cromwell’s London homes, it provides a fascinating new insight into the life and personality of a man who was one of the architects of the English Reformation and helped engineer the annulment of Henry VIII’s marriage to Catherine of Aragon, allowing him to marry Anne Boleyn.

Cromwell, who as Henry VIII’s henchman was the most powerful man in England, still captures the public imagination – and inspires novels, including Hilary Mantel’s award-winning Wolf Hall series, plays and TV series – today, almost 500 years after his death.

The mansion, next to the Austin Friars monastery in the City of London, cost Cromwell at least £1,600 to build, including around £550 on the land.

Cromwell had lived in Italy and spoke Italian and it is “very likely” the architecture contained fashionable new Italian Renaissance features, says Dr Holder.

Construction began in July 1535 and, like many building projects, there were hitches, including a delay in October the following year when the 80-strong team of workmen was sent to Yorkshire to fight the rebels of the Pilgrimage of Grace uprising.

Cromwell also seems to have undertaken a “land grab”, confiscating a 22-foot strip of land to enlarge his garden, which may have had a bowling alley and tennis court.

The mansion, which boasted bedding made cloth of gold, damask and velvet, acted as a family home, an administrative base and a venue for entertainment. It may even have been designed in the anticipation, or perhaps fear, of a visit from the king.

Prestigious visitors would have been guided up the large stair tower to one of the sumptuous first-floor halls, the parlor or the ladies’ parlor. The heated halls were decorated with tapestry hangings and one had three distinctive oriel (bay) windows.

The mansion was also a store for Cromwell’s personal armouy – in reality enough for a small army. This included several hundred sets of “almayne revettes” (German plate armor for infantry), nearly 100 sallets and bascinets (head-pieces and helmets) and weaponry including 759 bows, complete with hundreds of sheaves of arrows.

Cromwell would, however, have had little time to enjoy his spectacular new home before he was executed for treason in 1540.

He had moved to the mansion from a 14-room neighboring townhouse, for which he probably paid £4 a year in rent. Documents, including two inventories from Cromwell’s tenancy, provide a room-by-room description of this home and its contents, which included 28 rings, three of which Cromwell was wearing at the time of the inventory. They also give an intriguing glimpse into his religious outlook.

Dr Holder says: “We think of Cromwell as Henry VIII’s henchman, carrying out his policy, including closing down the monasteries, and we know that by about 1530 Cromwell became one of the new Evangelical Protestants.

“But when you look at the inventory of his house in the 1520s, he doesn’t seem such a religious radical, he seems more of a traditional English Catholic.

“He’s got various religious paintings on the wall, he’s got his own holy relic, which is very much associated with traditional Catholics, not with the new Evangelicals, and he’s even got a home altar. In the 1520s he seems like much more of a conventional early Tudor Catholic gentleman.”

The coats of arms of his patron Cardinal Wolsey and former patron, Thomas Grey, which were on display in the townhouse, meanwhile, reveal a sense of loyalty beneath Cromwell’s ruthless exterior, says Dr Holder.

The exceptionally detailed analysis was made possible thanks to a “treasure trove” of documents held in the archives of the Drapers’ Company, the trade group that bought Cromwell’s mansion after his death.

Dr Holder adds: “These two houses were the homes of this great man, they were the places where he lived with his wife and two daughters, where his son grew up. It was also the place he went back to at night after being with Henry VIII at court and just got on with the hard graft of running the country.

“No one else has looked at these two houses in quite as much detail comparing all the available evidence. This is about as close as you are going to get to walking down these 16th-century corridors.”

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Artist conception of the Cromwell home. Peter Urmston

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Article Source: Taylor & Francis Group news release

*https://www.tandfonline.com/doi/full/10.1080/00681288.2021.1923812

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Levantine crested rat and early human dispersals

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES—Crested rat fossils suggest that ecological corridors once connected Africa to the Levant, according to a study. Early humans and other hominins dispersed out of Africa through the Levant multiple times, but whether these journeys relied on technology to cross the Saharo-Arabian deserts or followed ecological corridors created by climate change is unclear. Ignacio Lazagabaster and colleagues analyzed rodent fossils discovered in the Cave of the Skulls in the southern Judean Desert as a proxy for the paleoenvironment of the Dead Sea region during the Late Pleistocene. Phylogenetic analyses of a sequenced mitochondrial genome and morphological comparisons suggest that the fossils, which were dated to between 42,000 and more than 103,000 years ago, belong to a now-extinct subspecies, Lophiomys imhausi maremortum subsp. nov., of the eastern African crested rat, an enigmatic large rodent equipped with a poisonous pelt and a helmet-like skull. Because extant crested rats live in habitats with relatively dense vegetation, the authors used species distribution models to estimate the timing and location of previously suitable habitats in the region. The results* suggest a brief period during the Last Interglacial when green habitat corridors connected eastern Africa to the Levant across the present-day Judean Desert, facilitating the dispersal of crested rats and humans out of Africa, according to the authors.

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A skull of the Dead Sea crested rat subspecies found in situ in the Cave of the Skulls in the southern Judean Desert. Ignacio A. Lazagabaster.

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View of the Dead Sea and the southern Judean Desert from the Cave of the Skulls. Ignacio A. Lazagabaster.

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Article Source: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES news release 

*“Rare crested rat subfossils unveil Afro-Eurasian ecological corridors synchronous with early human dispersals,” by Ignacio A. Lazagabaster et al.

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Roman road discovered in the Venice lagoon

SCIENTIFIC REPORTS—The discovery of a Roman road submerged in the Venice Lagoon is reported in Scientific Reports this week. The findings* suggest that extensive settlements may have been present in the Venice Lagoon centuries before the founding of Venice began in the fifth century.

During the Roman era, large areas of the Venice Lagoon which are now submerged were accessible by land. Roman artifacts have been found in lagoon islands and waterways, but the extent of human occupation of the lagoon during Roman times has been unclear.

Mapping the lagoon floor using sonar, Fantina Madricardo and colleagues discovered 12 archaeological structures aligned in a northeasterly direction for 1,140 metres, in an area of the lagoon known as the Treporti Channel. The structures were up to 2.7 meters tall and 52.7 meters long. Previous surveys of the Treporti Channel uncovered stones similar to paving stones used by Romans during road construction, indicating that the structures may be aligned along a Roman road. The researchers also discovered an additional four structures in the Treporti Channel that were up to four meters tall and 134.8 meters long. Based on its dimensions and similarity to structures discovered in other areas, the largest of these structures is thought to be a potential harbor structure, such as a dock. Previously collected geological and modeling data indicates that the road is located on a sandy ridge that was above sea level during the Roman era but is now submerged in the lagoon.

The findings suggest that a permanent settlement may have been present in the Treporti Channel during the Roman era. The authors propose that the road may have been linked to a wider network of Roman roads in the Italian Veneto Region and may have been used by travelers and sailors to journey between what is now the city of Chioggia and the Northern Venice Lagoon.

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NASA satellite image of the Venetian Lagoon. Public Domain, Wikimedia Commons

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Article Source: SCIENTIFIC REPORTS news release

*New evidence of a Roman road in the Venice Lagoon (Italy) based on high resolution seafloor reconstruction. DOI: 10.1038/s41598-021-92939-w

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Using archeology to better understand climate change

UNIVERSITY OF MONTREAL—Throughout history, people of different cultures and stages of evolution have found ways to adapt, with varying success, to the gradual warming of the environment they live in. But can the past inform the future, now that climate change is happening faster than ever before?

Yes, say an international team of anthropologists, geographers and earth scientists in Canada, the U.S. and France led by Université de Montréal anthropologist Ariane Burke.

In a paper* published today in the Proceedings of the National Academy of Sciences, Professor Burke and her colleagues make a case for a new and evolving discipline called “the archeology of climate change.”

It’s an interdisciplinary science that uses data from archeological digs and the palaeoclimate record to study how humans interacted with their environment during past climate-change events such as the warming that followed the last ice age, more than 10,000 years ago.

What the scientists hope to identify are the tipping points in climate history that prompted people to reorganize their societies to survive, showing how cultural diversity, a source of human resilience in the past, is just as important today as a bulwark against global warming.

“The archaeology of climate change combines the study of environmental conditions and archaeological information,” said Burke, who runs the Hominin Dispersals Research Group and the Ecomorphology and Paleoanthropology Laboratory.

“What this approach allows us to do identify the range of challenges faced by people in the past, the different strategies they used to face these challenges and ultimately, whether they succeeded or not.”

For instance, studying the rapid warming that occurred between 14,700 and 12,700 years ago, and how humans coped with it as evidenced in the archeological record, can help climate specialists model possible outcomes of climate change in the future, Burke said.

Her paper is co-authored with UdeM anthropologist Julien Riel-Salvatore and colleagues from Bishop’s University, Université du Québec à Montréal, the University of Colorado and the CNRS, in France.

Historically, people from different walks of life have found a variety of ways to adapt to the warming of their climate, and these can inform the present and help prepare for the future, the researchers say.

For example, traditional farming practices – many of which are still practiced today – are valid alternatives that can be used to redesign industrial farming, making it more sustainable in the future, they say.

Indigenous cultures have a major role to play in teaching us how to respond to climate change -in the Canadian Arctic, for instance, Indigenous people have a detailed knowledge of the environment that’s key to be essential to planning a sustainable response, said Burke.

“Similarly, indigenous farmers all over the world cultivate a wide variety of crop types that won’t all respond to changing climate conditions in the same way,” she said. “They are preserving crop diversity in the global food chain and if and when the main crop types we currently rely on fail, this diversity could well prove to be a lifeline.

Another example is the readoption in northeastern North America of multi-cropping agriculture based on the “three sisters”: corn, squash and beans. “There are archeological models for that,” said Burke, “and the point is to use them to come up with more sustainable, locally scaled ways of farming that will ensure food security in the years to come.

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Scientific evidence shows that humans adapted as climate changed in the past. ELG21, Pixabay

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Article Source: UNIVERSITY OF MONTREAL news release

*”The archeology of climate change: the case for cultural diversity,” by Ariane Burke et al, was published July 19 in the Proceedings of the National Academy of Sciences. Funding was provided by the Fonds de recherche du Québec – Société et culture.

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Only 1.5% to 7% of the Modern Human Genome Is Uniquely Human, Evidence Suggests

Science Advances—Only 1.5% to 7% of the modern human genome is uniquely human, according to an analysis of Neanderthal, Denisovan, and human genomes. The study* provides evidence for adaptive changes to the human genome within the past 600,000 years, most of which are connected to brain development. The findings also suggest that at least one wave of Neanderthals intermixed with the ancestors of all non-Africans and also point to Neanderthal and Denisovan genomic regions unique to South Asians. Scientists have found it difficult to determine which genes in the modern human genome were passed on from our hominin ancestors and which are uniquely our own. One particular roadblock is that humans harbor Neanderthal alleles, both from intermixing between human and Neanderthal populations and from incomplete lineage sorting, or alleles that predate the split between humans and Neanderthals but are not found in all humans. To circumvent these challenges, Nathan Schaefer and colleagues developed an improved ancestral recombination graph inference algorithm called Speedy Ancestral Recombination Graph Estimator (SARGE), which more effectively highlights alleles inherited from human intermixture with Neanderthals. The researchers ran SARGE on a panel of 279 modern human genomes, two Neanderthal genomes, and one Denisovan genome. They used the resulting ancestral recombination graph to map Neanderthal and Denisovan ancestry and the absence of both across modern human genomes. This enabled Schaefer et al. to identify mutations specific to humans and to determine that these mutations arose in 2 distinct bursts – one about 600,000 years ago and another about 200,000 years ago. Many of these mutations appear to affect genes involved in neural development and function, as well as RNA splicing.

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Only 1.5% to 7% of the modern human genome is uniquely human. The Digital Artist, Pixabay

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Article Source: The open-access journal Science Advances news release

*“An ancestral recombination graph of human, Neanderthal, and Denisovan genomes,” by N.K. Schaefer; B. Shapiro; R.E. Green at University of California, Santa Cruz in Santa Cruz, CA; N.K. Schaefer at University of California, San Francisco in San Francisco, CA.

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An archaeological study reveals new aspects related to plant processing in a Neolithic settlement in Turkey

UNIVERSITAT POMPEU FABRA – BARCELONA—A study* conducted by researchers from the UPF Culture and Socio-Ecological Dynamics research group (CaSEs) and the University of Leicester (UK) has provided a highly dynamic image surrounding the use and importance of hitherto unknown wild plant resources at the Neolithic site of Çatalhöyük (Anatolia, Turkey). The researchers carried out their work combining the analysis of microbotanical remains and use-wear traces in various stone implements recovered from the site, which in the past hosted one of mankind’s first agricultural societies.

Çatalhöyük is a world heritage archaeological site located in Anatolia (Turkey), which was inhabited during the Neolithic, between 7,100 and 6,000 BC. This site has received worldwide attention due to its size and because it is one of the first urban centers with a high density of agglomerated dwellings, to which entry was gained through the roof and which contained elaborate wall paintings inside. The settlement was studied continuously for nearly three decades and provided a wealth of archaeobotanical remains (charred remains of plants) and a wide range of stone artifacts and tools used to process plant resources.

An innovative approach that analyses residue trapped on the surface of grinding implements

Despite the extensive research conducted in the area, much of what is known about agricultural practices and the use of plant resources, both at Çatalhöyük and in many other archaeological settlements, is based on the study of charred remains. However, these remains occur causally, either when cooking food or due to accidental fire, which gives a limited image of the use of plant resources in the past.

“We recovered residues trapped in the pits and crevices of these stone artefacts that date back to the time of being used, and then carried out studies of microbotanical remains and thus reveal what types of plants had been processed with these artifacts in the past”

The study, led by Carlos G. Santiago-Marrero, a predoctoral researcher with the Culture and Socio-Ecological Dynamics (CaSEs) research group of the UPF Department of Humanities, together with Carla Lancelotti and Marco Madella, ICREA-UPF research professors and members of CaSEs, and Christina Tsoraki, of the School of Archaeology and Ancient History at the University of Leicester (UK), used an innovative approach based on the analysis of microscopic remains taken from grinding implements from three domestic contexts, attributed to the Middle (6,700-6,500 BC) and Late (6,500 -6,300 BC) periods of occupation.

“We recovered residues trapped in the pits and crevices of these stone artifacts that date back to the time of being used, and then carried out studies of microbotanical remains and thus reveal what types of plants had been processed with these artifacts in the past”, the researchers explain.

Among the microscopic remains studied by the researchers are phytoliths, from the deposition of opal silica in plant cells and cell walls, that provide clues about the presence of anatomical parts, such as the stems and husks of plants, including wheat and barley. Another residue studied are starches, glucose compounds, created by plants to store energy, which are found in large quantities in many edible parts of plants, such as seeds and tubers.

Thanks to combining these two lines, the researchers have shown that although the community of Çatalhöyük was based on an agricultural economy by definition, growing cereals and vegetables (wheat, oats, peas), there continued to be much exploitation of wild resources outside the spectrum of domestic resources, which had not yet been found at this site.

Use of wild plant resources to diversify the diet, through complex processing

“Microbotanical evidence has contributed to our knowledge about the plants used in the past and helped identify the presence of wild plants and various aspects related to possible strategies to exploit these resources, both to diversify the diet and to replace any calorie deficit that may have arisen in times of scarcity”, the researchers assert. These wild plant resources were as important as domestic ones, and were most likely used regularly to supplement the core diet.

“Among our findings we have shown that the community used a wide range of tuberous plants, many of them belonging to potentially toxic taxonomic families, which require complex processing or use. This shows the great phytocultural knowledge possessed by this community”, the authors underscore. And they add: “Many of these tuberous plants had highly restrictive seasonal life cycles, which has helped us to infer the possible means of organizing and exploiting the plant environment at different times of the year”.

Moreover, another important aspect revealed by the study is the processing of wild millet seeds, which had never been found among the charred remains of plants on the site.

Use-wear traces on the surfaces of processing implements denoting various uses

The analysis of use-wear traces on the surfaces of plant processing implements, produced by use in various activities, has allowed the researchers to infer different tasks for which the tools were used.

Thanks to these analyses, they have discovered very diverse life histories of these implements and the close relationship with various aspects related to the processing of plant resources and other domestic activities. “By combining microbotanical evidence with use traces, we have discovered processes such as grain husking, the milling of legumes, tubers and cereals, and even the use of these implements in other activities not related to plant processing”.

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A) Set of stone tools, storage area of building 52; B) Use-wear trace observed on the surface of stone implements; C) Wheat inflorescence phytolith; D) Wheat starch grain. UPF

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Article Source: UNIVERSITAT POMPEU FABRA news release

*Santiago-Marrero, C., Tsoraki, C., Lancelotti, C., and Madella, M. (June 2021). “A microbotanical and microwear perspective to plant processing activities and foodways at Neolithic Çatalhöyük”. PLOS ONE

https://doi.org/10.1371/journal.pone.0252312

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Huge volcanic eruption disrupted climate but not human evolution

RUTGERS UNIVERSITY—New Brunswick, N.J. (July 9, 2021) — A massive volcanic eruption in Indonesia about 74,000 years ago likely caused severe climate disruption in many areas of the globe, but early human populations were sheltered from the worst effects, according to a Rutgers-led study.

The findings appear in the journal PNAS.

The eruption of the Toba volcano was the largest volcanic eruption in the past two million years, but its impacts on climate and human evolution have been unclear. Resolving this debate is important for understanding environmental changes during a key interval in human evolution.

“We were able to use a large number of climate model simulations to resolve what seemed like a paradox,” said lead author Benjamin Black, an assistant professor in the Department of Earth and Planetary Sciences at Rutgers University-New Brunswick. “We know this eruption happened and that past climate modeling has suggested the climate consequences could have been severe, but archaeological and paleoclimate records from Africa don’t show such a dramatic response.

“Our results suggest that we might not have been looking in the right place to see the climate response. Africa and India are relatively sheltered, whereas North America, Europe and Asia bear the brunt of the cooling,” Black said. “One intriguing aspect of this is that Neanderthals and Denisovans were living in Europe and Asia at this time, so our paper suggests evaluating the effects of the Toba eruption on those populations could merit future investigation.”

The researchers analyzed 42 global climate model simulations in which they varied magnitude of sulfur emissions, time of year of the eruption, background climate state and sulfur injection altitude to make a probabilistic assessment of the range of climate disruptions the Toba eruption may have caused. This approach let the team account for some of the unknowns related to the eruption.

“By using a probabilistic approach, we aim at understanding the likelihood that some regions were less impacted by Toba, considering the wide range of estimates of its size and timing, in addition to our lack of knowledge of the underlying climate state,” said Black.

The results suggest there was likely significant regional variation in climate impacts. The simulations predict cooling in the Northern Hemisphere of at least 4°C, with regional cooling as high as 10°C depending on the model parameters. In contrast, even under the most severe eruption conditions, cooling in the Southern Hemisphere—including regions populated by early humans — was unlikely to exceed 4°C, although regions in southern Africa and India may have seen decreases in precipitation at the highest sulfur emission level.

The results explain independent archaeological evidence suggesting the Toba eruption had modest effects on the development of hominid species in Africa. According to the authors, their ensemble simulation approach could be used to better understand other past and future explosive eruptions.

“Our results reconcile the simulated distribution of climate impacts from the eruption with paleoclimate and archaeological records,” according to the study. “This probabilistic view of climate disruption from Earth’s most recent super-eruption underscores the uneven expected distribution of societal and environmental impacts from future very large explosive eruptions.”

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The Rutgers-led researchers examined explosive ash deposits that are tens of meters thick about 35 km north of the Toba caldera in Indonesia. Steve Self, UC Berkeley

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Article Source: RUTGERS UNIVERSITY news release

The study included researchers from the National Center for Atmospheric Research, University of Leeds and University of Cambridge, and was supported by the National Center for Atmospheric Research and the National Science Foundation.

Broadcast interviews: Rutgers University has broadcast-quality TV and radio studios available for remote live or taped interviews with Rutgers experts. For more information, contact John Cramer at john.cramer@rutgers.edu

ABOUT RUTGERS-NEW BRUNSWICK

Rutgers University-New Brunswick is where Rutgers, the State University of New Jersey, began more than 250 years ago. Ranked among the world’s top 60 universities, Rutgers’s flagship is a leading public research institution and a member of the prestigious Association of American Universities. It has an internationally acclaimed faculty, 12 degree-granting schools and the Big Ten Conference’s most diverse student body.

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Ancient ostrich eggshell reveals new evidence of extreme climate change thousands of years ago

UNIVERSITY OF EXETER—Evidence from an ancient eggshell has revealed important new information about the extreme climate change faced by human early ancestors.

The research shows parts of the interior of South Africa that today are dry and sparsely populated, were once wetland and grassland 250,000 to 350,000 years ago, at a key time in human evolution.

Philip Kiberd and Dr Alex Pryor, from the University of Exeter, studied isotopes and the amino acid from ostrich eggshell fragments excavated at the early middle Stone Age site of Bundu Farm, in the upper Karoo region of the Northern Cape. It is one of very few archaeological sites dated to 250,000 to 350,000 in southern Africa, a time period associated with the earliest appearance of communities with the genetic signatures of Homo sapiens.

This new research supports other evidence, from fossil animal bones, that past communities in the region lived among grazing herds of wildebeest, zebra, small antelope, hippos, baboons and extinct species of Megalotragus priscus and Equus capensis, and hunted these alongside other carnivores, hyena and lions.

After this period of equitable climate and environment the eggshell evidence – and previous finds from the site – suggests after 200,000 years ago cooler and wetter climates gave way to increasing aridity. A process of changing wet and dry climates recognized as driving the turnover and evolution of species, including Homo sapiens.

The study, published in the South African Archaeological Bulletin, shows that extracting isotopic data from ostrich eggshells, which are commonly found on archaeological sites in southern Africa, is a viable option for open-air sites greater than 200,000 years old. The technique which involves grinding a small part of the eggshell, to a powder allows experts to analyze and date the shell, which in turn gives a fix on the climate and environment in the past.

Using eggshell to investigate past climates is possible as ostriches eat the freshest leaves of shrubs and grasses available in their environment, meaning eggshell composition reflects their diet. As eggs are laid in the breeding season across a short window, the information found in ostrich eggshell provides a picture of the prevailing environment and climate for a precise period in time.

Bundu Farm, where the eggshell was recovered is a remote farm 50km from the nearest small town, sitting within a dry semi-desert environment, which supports a small flock of sheep. The site was first excavated in the late 1990’s the site with material stored at the McGregor Museum, Kimberley (MMK). The study helps fill a gap in our knowledge for this part of South Africa and firmly puts the Bundu Farm site on the map.

Philip Kiberd, who led the study, said: “This part of South Africa is now extremely arid, but thousands of years ago it would have been Eden-like landscape with lakes and rivers and abundant species of flora and fauna. Our analysis of the ostrich eggshell helps us to better understand the environments in which our ancestors were evolving and provides an important context in which to interpret the behaviors and adaptations of people in the past and how this ultimately led to the evolution of our species’.

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Mandible of small antelope in calcrete. Philip Kiberd

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ostrich eggshell in calcrete. Philip Kiberd

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partial skull of small antelope. Philip Kiberd

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Article Source: UNIVERSITY OF EXETER news release

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Climate changed the size of our bodies and, to some extent, our brains

UNIVERSITY OF CAMBRIDGE—An interdisciplinary team of researchers, led by the Universities of Cambridge and Tübingen, has gathered measurements of body and brain size for over 300 fossils from the genus Homo found across the globe. By combining this data with a reconstruction of the world’s regional climates over the last million years, they have pinpointed the specific climate experienced by each fossil when it was a living human.

The study reveals that the average body size of humans has fluctuated significantly over the last million years, with larger bodies evolving in colder regions. Larger size is thought to act as a buffer against colder temperatures: less heat is lost from a body when its mass is large relative to its surface area. The results are published today in the journal Nature Communications.

Our species, Homo sapiens, emerged around 300,000 years ago in Africa. The genus Homo has existed for much longer, and includes the Neanderthals and other extinct, related species such as Homo habilis and Homo erectus.

A defining trait of the evolution of our genus is a trend of increasing body and brain size; compared to earlier species such as Homo habilis, we are 50% heavier and our brains are three times larger. But the drivers behind such changes remain highly debated.

“Our study indicates that climate – particularly temperature – has been the main driver of changes in body size for the past million years,” said Professor Andrea Manica, a researcher in the University of Cambridge’s Department of Zoology who led the study.

He added: “We can see from people living today that those in warmer climates tend to be smaller, and those living in colder climates tend to be bigger. We now know that the same climatic influences have been at work for the last million years.”

The researchers also looked at the effect of environmental factors on brain size in the genus Homo, but correlations were generally weak. Brain size tended to be larger when Homo was living in habitats with less vegetation, like open steppes and grasslands, but also in ecologically more stable areas. In combination with archaeological data, the results suggest that people living in these habitats hunted large animals as food – a complex task that might have driven the evolution of larger brains.

“We found that different factors determine brain size and body size – they’re not under the same evolutionary pressures. The environment has a much greater influence on our body size than our brain size,” said Dr Manuel Will at the University of Tubingen, Germany, first author of the study.

He added: “There is an indirect environmental influence on brain size in more stable and open areas: the amount of nutrients gained from the environment had to be sufficient to allow for the maintenance and growth of our large and particularly energy-demanding brains.”

This research also suggests that non-environmental factors were more important for driving larger brains than climate, prime candidates being the added cognitive challenges of increasingly complex social lives, more diverse diets, and more sophisticated technology.

The researchers say there is good evidence that human body and brain size continue to evolve. The human physique is still adapting to different temperatures, with on average larger-bodied people living in colder climates today. Brain size in our species appears to have been shrinking since the beginning of the Holocene (around 11,650 years ago). The increasing dependence on technology, such as an outsourcing of complex tasks to computers, may cause brains to shrink even more over the next few thousand years.

“It’s fun to speculate about what will happen to body and brain sizes in the future, but we should be careful not to extrapolate too much based on the last million years because so many factors can change,” said Manica.

Summary:

  • The average body size of humans has fluctuated significantly over the last million years and is strongly linked to temperature.
  • Colder, harsher climates drove the evolution of larger body sizes, while warmer climates led to smaller bodies.
  • Brain size also changed dramatically but did not evolve in tandem with body size.

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Skulls: – Left: Amud 1, Neanderthal, 55.000 years ago, ~1750 cm³ – Middle: Cro Magnon, Homo sapiens, 32.000 years ago, ~1570 cm³ – Right: Atapuerca 5, Middle Pleistocene Homo, 430.000 years ago, ~1100 cm³ Femora: – Top: Middle Pleistocene Homo, Trinil, 540.000 years ago, ~50 kg – Bottom: Neanderthal, La Ferrassie 1, 44.000 years ago, ~90 kg  Manuel Will

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Article Source: UNIVERSITY OF CAMBRIDGE news release

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The Oldest Cities in the New World

The great Step Pyramid of Djoser in Egypt is popularly touted as the first and oldest ancient monumental pyramid ever built.

But think again.

Even before the ancients raised their massive stones in place in Egypt, more than 7700 miles to the southwest, on another continent, ancient people were constructing massive monumental structures, including pyramidal edifices in what is today known as Peru. At sites like Caral, Bandurria, Aspero, Huaricanga, and Sechin Bajo, all located within the north/central coastal region of Peru, massive construction requiring organized, community effort was underway as early as 3500/36000 BCE. That’s nearly 1,000 years before the Djoser pyramid and about 500 years before the Sialk zigurrat, the oldest Mesopotamian zigurrat, located in present-day Iran.

Dr. Kimberly Munro, an Andean archaeologist, has been exploring and investigating ancient sites in Peru for over a decade. She is the director of the Cosma Archaeological Project, a long-term research project involving excavation and survey in the Andean central highlands. “For the Andean region specifically, the origins of state development has long been debated,” writes Munro in an article recently published in Popular Archaeology. “The Andes is a peculiar case study, given that unlike the other 5 “cradles of civilization” located throughout the rest of the Prehistoric world, Andean state development did not rely entirely on an agricultural revolution. Large scale public monuments are found along the coast by at least 3700 BCE, and many early centers, especially in the highlands, predate intensive agriculture.”

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Detail view of one of the pyramids of Caral, which dates back to 2800 BCE.  Kimberly Munro

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Notwithstanding these early site discoveries, she maintains, there is room to question the suggestion by many archaeologists that this early development arose first in the coastal and lower river valley regions. There may be reason to seriously consider looking eastward toward the highlands, as well, to sites like Kotosh, near the town of Huánuco in the central highlands. She also points, for example, to a site known as La Galgada, located on the Tablachaca branch of the upper Santa River Valley at 1,100 masl (meters above sea level) in Peru’s Department of Ancash region. La Galgada features massive dual mounds, temples, and a sunken circular plaza.  “Dates for La Galgada range from 3000 to 1700 BCE,” she wrote to Popular Archaeology. “However, the base of the mound and presumably earliest constructions were never reached, indicating there may be earlier structures deep within the complex.”

Munro relates what is known to date about these ancient Peruvian cities in a major feature premium article now published at Popular Archaeology. She also plans to lead groups of interested participants on special tours/treks of these ancient sites, and many more, in the future. Anyone interested in participating in this activity may send an email expressing interest to populararchaeology@gmail.com. As these activities are developed, interested potential participants will be informed of the details and provided the opportunity to register with the group. Readers can also follow Dr. Munro’s archaeology updates on Instagram: @the.field.professor. Pictured here, Dr. Munro is on location at La Galgada.

Cover Image, Top Left: View of the pyramids of Caral. Kimberly Munro

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Neanderthal artists? Our ancestors decorated bones over 50,000 years ago

UNIVERSITY OF GÖTTINGEN—Since the discovery of the first fossil remains in the 19th century, the image of the Neanderthal has been one of a primitive hominin. People have known for a long time that Neanderthals were able to effectively fashion tools and weapons. But could they also make ornaments, jewelry or even art? A research team led by the University of Göttingen and the Lower Saxony State Office for Heritage has analyzed a new find from the Unicorn Cave (Einhornhöhle) in the Harz Mountains. The researchers conclude that, in fact, Neanderthals, genetically the closest relative to modern humans, had remarkable cognitive abilities. The results of the study were published in Nature Ecology and Evolution.

Working with the Unicornu Fossile society, the scientists have been carrying out new excavations at the Unicorn Cave in the Harz Mountains since 2019. For the first time, they succeeded in uncovering well-preserved layers of cultural artifacts from the Neanderthal period in the cave’s ruined entrance area. Among the preserved remains from a hunt, an inconspicuous foot bone turned out to be a sensational discovery. After removing the soil sticking to the bone, an angular pattern of six notches was revealed. “We quickly realized that these were not marks made from butchering the animal but were clearly decorative,” says the excavation leader Dr Dirk Leder of the Lower Saxony State Office for Heritage. The carved notches could then be analyzed with 3D microscopy at the Department of Wood Biology and Wood Products at Göttingen University.

To make a scientific comparison, the team carried out experiments with the foot bones of today’s cattle. They showed that the bone probably had to be boiled first in order to carve the pattern into the softened bone surface with stone tools and the work would take about 1.5 hours. The small ancient foot bone that had been discovered was identified as coming from a giant deer (Megaloceros giganteus). “It is probably no coincidence that the Neanderthal chose the bone of an impressive animal with huge antlers for his or her carving,” says Professor Antje Schwalb from the Technical University of Braunschweig, who is involved in the project.

The team of Leibniz laboratory at Kiel University dated the carved bone at over 51,000 years using radiocarbon dating technology. This is the first time that anyone has successfully directly dated an object that must have been carved by Neanderthals. Until now, a few ornamental objects from the time of the last Neanderthals in France were known. However, these finds, which are about 40,000 years old, are considered by many to be copies of pendants made by anatomically modern humans because by this time they had already spread to parts of Europe. Decorative objects and small ivory sculptures have survived from cave sites of modern humans on the Swabian Alb in Baden-Württemberg and these were found at about the same time.

“The fact that the new find from the Unicorn Cave dates from so long ago shows that Neanderthals were already able to independently produce patterns on bones and probably also communicate using symbols thousands of years before the arrival of modern humans in Europe,” says project leader Professor Thomas Terberger from Göttingen University’s Department for Prehistory and Early History, and the Lower Saxony State Office for Heritage. “This means that the creative talents of the Neanderthals must have developed independently. The bone from the Unicorn Cave thus represents the oldest decorated object in Lower Saxony and one of the most important finds from the Neanderthal period in Central Europe.”

Lower Saxony’s Minister of Science Björn Thümler says: “Lower Saxony’s archaeologists are always making discoveries that rewrite the history books. Now, research in the Unicorn Cave has revealed that the Neanderthals produced elaborate designs even before the arrival of modern humans – yet another important new finding that completely revises our picture of prehistory.”

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The Einhornhöhle (Unicorn Cave), Blaue Grotto. In the Middle Ages, animal bones from the ice-age were found, which treasure hunters mistook for unicorn bones and sold as possessing medicinal properties, hence the name “Unicorn Cave”. Since the discovery of the first stone tools from the Neanderthal period in 1985, archaeo-palaeontological excavations have been carried out in and in front of the cave. https://commons.wikimedia.org/wiki/File:EHH-Wiki001_C_GUfeV.JPG (CC BY-SA 4.0)

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The carved bone – a foot bone from a giant deer (Megaloceros giganteus) – found in the Unicorn Cave (inventory no. 46999448-423). V. Minkus, © NLD

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microCT scan of carved bone with marking of the notches. Marked in red are the six notches that create the angular pattern, marked in blue are accompanying notches. Graphik: A. Tröller-Reimer/D. Leder, © NLD

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Article Source: UNIVERSITY OF GÖTTINGEN news release

In addition to the University of Göttingen, the Technical University of Braunschweig and the Lower Saxony State Office for Heritage, and the universities of Kiel and Tübingen were also involved in the project. It was funded by the Lower Saxony Ministry for Science and Culture.

*Dirk Leder, Thomas Terberger et. al. “A 51,000?year?old engraved bone reveals Neanderthals” in Nature Ecology & Evolution. DOI: 10.1038/s41559?021?01487?z

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Leonardo Da Vinci: New family tree spans 21 generations, 690 years, finds 14 living male descendants

HUMAN EVOLUTION—The surprising results of a decade-long investigation by Alessandro Vezzosi and Agnese Sabato provide a strong basis for advancing a project researching Leonardo da Vinci’s DNA.

Their extensive study, published by the journal “Human Evolution” (Pontecorboli Editore, Florence), documents with new certainty the continuous male line, from father to son, of the Da Vinci family (later Vinci), from progenitor Michele (born 1331) to grandson Leonardo (6th generation, born 1452) through to today—21 generations in all, including five family branches—and identifies 14 living descendants.

The work fills gaps and corrects errors in previous genealogical research into Leonardo’s family, while offering new discoveries and family tree updates.

This text deepens and enormously expands the discovery announced in Vinci, Italy, in 2016 by the same Vezzosi and Sabato of numerous living but indirect descendants including only two males in direct line, up to the 19th generation, from a single branch of the Vinci family.

It also provides for the first time the documentary data and information sources over seven centuries to the present day registry office, with work on additional family branches ongoing.

Leonardo himself had at least 22 half-brothers but no children; a new unpublished document shows that “Paolo di Leonardo da Vinci da Firenze” was a case of homonymy. The five family branches are traced from Leonardo’s father, ser Piero (5th generation), and half-brother Domenico (6th). Since the 15th generation, data have been collected on over 225 individuals. The study, with the collaboration of the living descendants, contributes to the work of the Leonardo Da Vinci Heritage Association.

This extraordinary, authoritative 690-year genealogical investigation is fundamental to affiliated scientific work Vezzosi and Sabato have underway with the international Leonardo da Vinci DNA project, supported by The Richard Lounsbery Foundation. The project involves the J. Craig Venter Institute of La Jolla, California and several other high-profile universities and research centers, including the Department of Biology of the University of Florence, directed by David Caramelli.

The Y chromosome, passed on to male descendants, is known to remain almost unchanged through 25 generations. Comparing the Y chromosome of today’s male relatives with that of their ancestors in ancient and modern burial sites would both verify the uninterrupted family line and certify Leonardo’s own Y chromosome marker.

Questions potentially probed once Leonardo’s DNA is confirmed include reasons behind his genius, information on his parents’ geographical origins, his physical prowess, premature aging, left-handedness, diet, health and any hereditary diseases, and his extraordinary vision, synaesthesia and other sensory perceptions.

Comparison of biological data could also potentially help verify the authenticity of artwork and materials handled by Leonardo, thereby pioneering links between biology and art with broad implications for the world’s art market in terms of artistic attribution and materials.

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Researchers Alessandro Vezzosi and Agnese Sabato have documented 21 generations of Leonardo Da Vinci’s family covering 690 years and identified 14 living male family descendants. Alessandro Vezzosi and Agnese Sabato

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Researchers Alessandro Vezzosi and Agnese Sabato. Alessandro Vezzosi and Agnese Sabato

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Article Source: HUMAN EVOLUTION news release.

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About the authors

Alessandro Vezzosi

Leonardist and art historian. He is originally from Vinci, where he founded the Leonardo Da Vinci Ideal Museum in 1993, with the Archives of fingerprints and Leonardisms, and with the project for “Leonardo’s Garden”. He is the author and curator of countless exhibitions, publications, conferences and lectures on Leonardo, as well as on Michelangelo and Raphael, the Garden of Pratolino, “and places of memory, contemporary art and design, from the United States to Japan.

His books have been translated into 19 languages ??(from Leonardo da Vinci: The Mind of the Renaissance, New York, Harry N. Abrams, 1997 to Leonardo Da Vinci: The Complete Paintings in Detail, New York, Prestel, 2019).

He began in 1973 the research on the locations and spaces and descendants of Leonardo, for what has been configured since 2000 as a search for Leonardo’s DNA. museoideale@gmail.com

Agnese Sabato

Agnese Chairs the Leonardo Da Vinci Heritage Association. She graduated in Modern History from the University of Florence. She collaborates in the organization of exhibitions, conferences, educational activities and institutional initiatives of the Leonardo Da Vinci Ideal Museum (including the “Fingerprint Archive”), and in books and study notebooks. She has published contributions on the history of slaves in Florence and on the myth and image of Leonardo. She has been working since 1993 researching the genealogy and living descendants of the Da Vinci, in collaborations with the Leonardo Da Vinci DNA Project since 2015. leonardodavinciheritage@gmail.com

Leonardo Da Vinci Heritage Association

The Association aims to protect and enhanceLeonardo’s cultural heritage and the spaces and locations related to his life and work. Born as an idea in 2017, the non-profit (Third Sector) Leonardo Da Vinci Heritage Association was established formally in January 2019 to spread in Italy and abroad the knowledge of Leonardo’s life – through research, publishing and exhibition activities; strengthen research, dissemination, documentation and information activities on his life story, with particular reference to the genealogy of his family; safeguard the privacy of his descendants; to promote studies, research and scientific examinations relating to the DNA of Leonardo and his relatives; safeguard his moral and ethical heritage, while respecting and protecting his cultural heritage.

The project is curating creation of the “GeniaDaVinci” database, which will collect the thousands of documents collected for this study and the family tree in progress, to make them accessible to scholars and the general public.

A volume of the new paper in Italian will be published soon with full iconography.

Leonardo Da Vinci DNA Project

Founded by anthropologists Brunetto Chiarelli and Henry de Lumley in 2014, goals of the project include obtaining and sequencing DNA of Leonardo to understand better his extraordinary talents, notably his visual acuity, through genetic associations. Three-dimensional images of Leonardo could possibly be created if sufficient genome sequence data becomes available.

Completed pilot studies confirm the ability to identify useful biological material from centuries old works of art and other kinds of relics and samples. The project also investigates the microbial flora located on and within artworks. Using 16S sequencing, the project has demonstrated a novel finding that there are differing bacterial communities when comparing artwork on wood and canvas, and microbes on stone/marble/plaster sculptures. It has also demonstrated that there are specific genera known for having oxidative positive strains present on paintings on wood and paintings on canvas that could potentially be responsible for deterioration and fading. More generally the Project seeks to stimulate fruitful interactions between, on the one hand, geneticists, molecular biologists, and microbiologists, and, on the other hand, historians, art historians, artists, and other experts in cultural heritage.

Funding for this project is provided by The Richard Lounsbery Foundation. Related news release: here.

Human Evolution

Angelo Pontecorboli Editore – Firenze
ISSN 0393-9375 — ISSN ONLINE 1824-310X
A scientific journal founded in 1969 by Prof. Brunetto Chiarelli, University of Florence.
Managing Editor: Angelo Pontecorboli.

Human Evolution publishes scientific articles on the physical, sociological and cultural evolution of Humankind.

There are numerous disciplines involved in the study of human evolution which the magazine tries to address. Particular attention is paid to molecular evolution, genetics and DNA.

Human Evolution is published in English in Florence, Italy in one volume per year divided into four issues. http://www.pontecorboli.com – http://www.pontecorbolipress.com info@pontecorboli.it

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Scientists reconstruct Mediterranean silver trade, from Trojan War to Roman Republic

GOLDSCHMIDT CONFERENCE—Scientists have reconstructed the Eastern Mediterranean silver trade, over a period including the traditional dates of the Trojan War, the founding of Rome, and the destruction of Solomon’s Temple in Jerusalem. The team of French, Israeli and Australian scientists and numismatists found geochemical evidence for pre-coinage silver trade continuing throughout the Mediterranean during the Late Bronze and Iron Age periods, with the supply slowing only occasionally. Silver was sourced from the whole north-eastern Mediterranean, and as far away as the Iberian Peninsula.

The team used high-precision isotopic analysis to identify the ore sources of minute lead traces found in silver Hacksilber. Hacksilber is irregularly cut silver bullion including broken pieces of silver ingots and jewelry that served as means of payment in the southern Levant from the beginning of the second millennium until the fourth century BCE. Used in local and international transactions, its value was determined by weighing it on scales against standardized weights. It has been discovered in archaeological excavations in the region usually stored inside ceramic containers and it had to be imported as there was no silver to be mined in the Levant.

Presenting the research at the Goldschmidt geochemistry conference, Dr. Liesel Gentelli said “Even before coinage there was international trade, and Hacksilber was one of the commodities being exchanged for goods”.

The team analyzed Hacksilber from 13 different sites dating from 1300 BCE to 586 BCE in the southern Levant, modern-day Israel and the Palestinian Authority. The samples included finds from ‘En Gedi, Ekron, and Megiddo (also known as Armageddon). They matched their findings with ore samples, and have shown that most of the Hacksilber came from the Southern Aegean and Balkans (Macedonia, Thrace and Illyria). Some was also found to come from as far away as Sardinia and Spain.

Lead researcher Liesel Gentelli (École normale supérieure de Lyon, France) said:

“Previous researchers believed that silver trade had come to an end following the societal collapse at the end of the Late Bronze Age, but our research shows that exchanges between especially the southern Levant and the Aegean world never came to a stop. People around the Eastern Mediterranean remained connected. It’s likely that the silver flowed to the Levant as a result of trade or plunder.

We do see periods of silver scarcity around the time of the Bronze to Iron Age transition, around 1300-1100 BCE. Some hoards from this period show the silver displaying unusually high copper content, which would have been added to make up for the lack of silver.

We can’t match our findings on the silver trade to specific historical events, but our analysis shows the importance of Hacksilber trade from before the Trojan War, which some scholars date to the early 12th century BCE, through the founding of Rome in 753 BCE, and up to the end of the Iron Age in 586 BCE, marked by Nebuchadnezzar’s destruction of Solomon’s Temple in Jerusalem. After that, we see the gradual introduction of coinage, first as finds of several archaic coins and later a transition to a monetary economy in the southern Levant circa 450 BCE which made the trade of Hacksilber less relevant. However, this work reveals the ongoing and crucial economic role that Hacksilber played in the Bronze and Iron Ages economies”.

Commenting, Dr Matthew Ponting, Senior Lecturer in Archaeological Materials at the University of Liverpool said:

“This is important new work that confirms our understanding of trade and exchange routes in the Early Iron Age Levant. The fact that all silver found in the region would have had to have been imported presents exciting possibilities to investigate trade routes more generally as well as to learn more about alloy use and preference during this important period of history”.

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A Hacksilber hoard dated to the middle of the eleventh century BCE found by the Leon Levy Expedition to Ashkelon. We are grateful to L. E. Stager and D. Master, directors of the Leon Levy Expedition to Ashkelon, and to D. T. Ariel, for allowing us to publish these photographs. Photo © The Israel Museum, by Haim Gitler and © Israel Antiquities Authority, by Clara Amit

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Article Source: GOLDSCHMIDT CONFERENCE news release

Dr Ponting was not involved in this work, this is an independent comment.

The Goldschmidt Conference is the World’s main geochemistry conference. It is hosted alternately by the European Association of Geochemistry (Europe) and the Geochemical Society (USA). The 2021 conference (virtual) takes place from 4-9 July, https://2021.goldschmidt.info/. The 2022 conference takes place in Hawaii.

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The City of David and the sharks’ teeth mystery

GOLDSCHMIDT CONFERENCE—Scientists have found an unexplained cache of fossilised shark teeth in an area where there should be none – in a 2900 year old site in the City of David in Jerusalem. This is at least 80 km from where these fossils would be expected to be found. There is no conclusive proof of why the cache was assembled, but it may be that the 80 million-year-old teeth were part of a collection, dating from just after the death of King Solomon*. The same team has now unearthed similar unexplained finds in other parts of ancient Judea.

Presenting the work at the Goldschmidt Conference, lead researcher, Dr. Thomas Tuetken (University of Mainz, Institute of Geosciences) said:

“These fossils are not in their original setting, so they have been moved. They were probably valuable to someone; we just don’t know why, or why similar items have been found in more than one place in Israel”.

The teeth were found buried in material used to fill in a basement before conversion to a large Iron-Age house. The house itself was situated in the City of David, one of the oldest parts of Jerusalem, found nowadays in the largely Palestinian village of Silwan. They were found together with fish bones thrown away as food waste 2900 years ago, and other infill material such as pottery. Intriguingly, they were found together with hundreds of bullae – items used to seal confidential letters and packages – implying a possible connection with the administrative or governing class at some point. Normally archaeological material is dated according to the circumstances where it is found, and so at first it was assumed that the teeth were contemporary with the rest of the find. Dr. Tuetken said:

“We had at first assumed that the shark teeth were remains of the food dumped nearly 3000 years ago, but when we submitted a paper for publication, one of the reviewers pointed out that the one of the teeth could only have come from a Late Cretaceous shark that had been extinct for at least 66 million years. That sent us back to the samples, where measuring organic matter, elemental composition, and the crystallinity of the teeth confirmed that indeed all shark teeth were fossils. Their strontium isotope composition indicates an age of about 80 million years. This confirmed that all 29 shark teeth found in the City of David were Late Cretaceous fossils – contemporary with dinosaurs. More than that, they were not simply weathered out of the bedrock beneath the site, but were probably transported from afar, possibly from the Negev, at least 80 km away, where similar fossils are found”.

Since the first finds, the team have found other shark teeth fossils elsewhere in Israel, at the Maresha and Miqne sites. These teeth are also likely to have been unearthed and moved from their original sites.

Dr. Tuetken said:

“Our working hypothesis is that the teeth were brought together by collectors, but we don’t have anything to confirm that. There are no wear marks which might show that they were used as tools, and no drill holes to indicate that they may have been jewelry. We know that there is a market for shark’s teeth even today, so it may be that there was an Iron Age trend for collecting such items. This was a period of riches in the Judean Court. However, it’s too easy to put 2 and 2 together to make 5. We’ll probably never really be sure”.

The shark teeth which have been identified come from several species, including from the extinct Late Cretaceous group Squalicorax. Squalicorax, which grew to between 2 and 5 meters long, lived only during the Late Cretaceous period (which was the same period as the late dinosaurs), so acts as a reference point in dating these fossils.

Commenting, Dr. Brooke Crowley (University of Cincinnati) said:

“This research by Dr. Tuetken and colleagues is an excellent example of why it is so important to approach a research question with as few assumptions as possible, and how sometimes we have to revisit our initial assumptions. It also highlights how beneficial it can be to apply multiple tools to answer a research question. In this case, the authors used both strontium and oxygen isotopes, as well as x-ray diffraction and trace element analysis to establish most likely age and origin of the fossil teeth. It was a monumental of work but these efforts have revealed a much more interesting story about the people who lived in this region in the past. I am very excited by this work and hope that one day, we might be able to unravel the mystery of why these fossil teeth are being recovered from cultural deposits”.

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Fossilized Squalicorax tooth Nr. #07815 from the Jerusalem site. Omri Lernau

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Article Source: GOLDSCHMIDT CONFERENCE news release

Dr. Crowley was not involved in this work. The work relating to the Jerusalem finds has been published in the peer-reviewed journal Frontiers in Ecology and Evolution 8:570032 (https://doi.org/10.3389/fevo.2020.570032), Dr. Crowley edited this paper for the journal. 

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After routing de Soto, Chickasaws repurposed Spanish objects for everyday use

FLORIDA MUSEUM OF NATURAL HISTORY, GAINESVILLE, Fla.—Archaeologists have unearthed a rare trove of more than 80 metal objects in Mississippi thought to be from Hernando de Soto’s 16th-century expedition through the Southeast. Many of the objects were repurposed by the resident Chickasaws as household tools and ornaments, an unusual practice at a time when European goods in North America were few and often reserved for leaders.

The researchers believe Spaniards left the objects behind while fleeing a Chickasaw attack that followed frayed relations between the two groups in 1541. The victors took advantage of the windfall of spoils – axe heads, blades, nails and other items made of iron, lead and copper alloy – modifying many of them to suit local uses and tastes. Chickasaw craftspeople turned pieces of Spanish horseshoes into scrapers, barrel bands into cutting tools and bits of copper into jingling pendants.

The sheer abundance of objects from the site, an area of northeastern Mississippi known as Stark Farms, is one of the factors that makes the find unique, said Charles Cobb, the study’s lead author and Florida Museum of Natural History Lockwood Chair in Historical Archaeology.

“Typically, we might find a handful of European objects in connection with a high-status person or some other special context,” Cobb said. “But this must have been more of an open season – a pulse of goods that became widely available for a short period of time.”

If the researchers’ diagnosis is correct, Stark Farms is only the second place to yield convincing archaeological evidence of direct contact with de Soto’s expedition, after the historic site of the Apalachee capital of Anhaica in present-day Tallahassee, Cobb said.

‘Unconquered and unconquerable’

By the time de Soto arrived in Mississippi in 1540, the conquistador had trekked through the Southeast for more than a year with about 600 people, hundreds of horses and pigs and heavy equipment in tow. A shrewd man with a reputation for bloodshed, de Soto was previously a key figure in the Spanish destruction of the Inca Empire in South America and came to Florida with an eye to further increase his wealth. Finding little gold, he pressed deeper into the interior, alternately befriending and warring with the Native Americans he encountered.

The Spaniards began on a friendly, if aloof, footing with the Chickasaws, whose leader, known as Chikasha Minko, gave them a modest village in which to spend the winter. But tensions rose as the months dragged on: De Soto executed two Chickasaws and cut off the hands of another accused of stealing pigs. The Chickasaws, who farmed maize in the region’s rich prairie soil, also must have grown tired of providing food and shelter for such a large encampment of uninvited guests, Cobb said.

With spring drawing near, de Soto demanded that Chikasha Minko provide him with hundreds of Chickasaws to carry the Spaniards’ equipment to their next destination. According to Spanish accounts of the expedition, the conversation did not go well.

Shortly afterwards, the Chickasaws launched a surprise attack under the cover of night, torching the Spanish camp and killing at least a dozen men, as well as many horses and pigs. The retreating Spaniards set up another camp about a mile away, where they were assaulted a second time. Better prepared, they fought back, but soon picked up and headed north, having lost much of their livestock, clothing and goods.

Meanwhile, the Chickasaws collected from the battlefield dozens of prized metal objects, usually reserved by the Europeans for strategic trades or as gifts to smooth relationships with local leaders.

“It’s kind of like inflation,” Cobb said. “You don’t want too much stuff to get out or that gift will be devalued. That’s what makes this site unusual.”

After the Chickasaws sent the Spanish packing, the region remained largely free of European presence for nearly 150 years.

“This research shows how Chickasaws adapted to invasion by alien intruders and secured their reputation as unconquered and unconquerable,” said study co-author Brad Lieb, director of Chickasaw archaeology for the Chickasaw Nation’s Heritage Preservation Division. “The findings are remarkable in their success in addressing a baseline event in Chickasaw cultural history – the first encounter with Hernando de Soto and the Spanish invaders.”

History confirmed by metal detectors

When Cobb, Lieb and their colleagues first arrived at Stark Farms in 2015, they weren’t just looking for traces of de Soto. The Chickasaw Nation, removed from its traditional homeland to Oklahoma by the U.S. Department of War in 1837, had commissioned the team to identify and preserve ancestral sites and provide Chickasaw university students the opportunity to reconnect with their heritage through an archaeology fieldwork program.

The team focused on studying the environmental factors in the movements of Native Americans across the landscape, where radiocarbon dates showed people had lived since the 14th or 15th century. Curious about early residents’ potential interactions with outsiders, the researchers brought metal detectors, a speedy way of finding objects of European origin. The first day they deployed the detectors, the machines began pinging. Soon, the team was uncovering dozens of items, including a small cannon ball, a mouth harp and what could be a Spanish bridle bit, emblazoned with a golden cross.

“We couldn’t believe it,” Cobb said. “There was a lot of serendipity for sure.”

The style and type of objects, as well as their location, aligned with Spanish accounts of the de Soto expedition and the 1541 battle at Chikasha, the main Chickasaw town. But the researchers found no evidence of a burned village or the remains of horses and pigs. Cobb said the site was likely a village near Chikasha, whose inhabitants visited the site of the conflict and brought items back to their households. They may also have acquired some of the objects during the previous winter through under-the-table trading with Spanish soldiers.

The Chickasaws generally relied on bone, cane or stone as raw materials for their cutting and scraping tools, making the haul of metal a particular boon. While some of the objects retain their original form, the Chickasaws painstakingly reworked others into more familiar shapes. They bent metal back and forth until it broke and ground down and smoothed edges, modifying tools to mimic the design of their traditional Chickasaw counterparts.

“One of the most stunning things we’ve found is an exact iron replica of a Native American stone celt, or axe head,” Cobb said. “I’ve never seen anything like this in the Southeast before.”

Among the more sobering finds were chain links, pulled apart with sharpened edges. “The Spanish brought reams of chain with them to shackle Native Americans as captives and porters,” Cobb said. “This is evidence of some of the first examples of European enslavement of people in what is now the U.S.”

The refashioned items from Stark Farms represent a stage of Native American experimentation and improvisation with foreign items that largely faded by the late 1700s and 1800s, as they folded European materials and technology more completely into their own.

“In the 1500s, a thimble might be turned into a bangle. By the late 1700s, a thimble is a thimble,” Cobb said. “You tend to see a more regular adoption of goods over time.”

Spanish survivors did their own repurposing

De Soto failed to establish any permanent settlements in the Southeast, joining a line of ill-fated expeditions that demonstrated the precariousness of Europeans’ early attempts to dominate the region. He succumbed to a fever on the banks of the Mississippi River in 1542, and his remaining band of men made rafts and floated south to Mexico where they found passage back to Spain.

There, they undertook a repurposing effort of their own: Having failed to find fame and fortune in the Americas, they sold their stories, many of which became bestselling books, Cobb said.

“There was a thriving industry in explorer and survival tales, which is probably one of the reasons why some of these individuals provided their accounts. From that perspective, it was very modern.”

The objects will be repatriated to the Chickasaw Nation for permanent curation and exhibits.

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Florida Museum archaeologist Charles Cobb holds an axe head known as a celt, one of more than 80 metal objects likely from the de Soto expedition. To create this distinct shape, a Chickasaw craftsperson reworked Spanish iron to mimic traditional stone versions. Jeff Gage/Florida Museum of Natural History

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Europeans rarely traded or gifted military items. The presence of objects such as this palm-sized cannonball, lead shot and a ramrod tip at Stark Farms is one reason Cobb and his colleagues believe many of the items were spoils collected after the 1541 battle between the Spaniards and Chickasaws. Jeff Gage/Florida Museum of Natural History

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Chickasaws worked Spanish metal into tools and ornaments that reflected local uses and tastes, such as these brass pendants. If the researchers’ diagnosis is correct, Stark Farms, Mississippi is only the second place to yield convincing archaeological evidence of direct contact with de Soto’s expedition. Jeff Gage/Florida Museum of Natural History

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Article Source: FLORIDA MUSEUM OF NATURAL HISTORY news release. Writer: Natalie van Hoose

James Legg, Steven Smith and Chester DePratter of the South Carolina Institute of Archaeology and Anthropology and Edmond Boudreaux of the University of Mississippi also co-authored the study. The Chickasaw Nation reviewed the study for consistency with its histories.

The Chickasaw Nation and its Chickasaw Explorers Program co-led and funded the research. Portions of the fieldwork were also funded by the National Geographic Society.

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Where are the Foreigners of the First International Age?

MAX PLANCK INSTITUTE FOR THE SCIENCE OF HUMAN HISTORY—The Bronze Age in the eastern Mediterranean has long been considered by researchers to have been the ‘first international age,’ especially the period from 1600-1200 BC, when powerful empires from Anatolia, Mesopotamia, and Egypt set up large networks of subordinate client kingdoms in the Near East. These empires fought, traded, and corresponded with one another, and ancient texts from the period reveal rich economic and social networks that enabled the movement of people and goods.

A new study conducted by an interdisciplinary team of archaeologists, geneticists, and isotope experts, and published in PLOS ONE, investigated the movement of people in this period at a single regional center, a Bronze Age city-state called Alalakh in present-day southeastern Turkey. Their results indicate that the majority buried at Alalakh were raised locally and descended from people who lived in the region.

The team’s goal was to see if the high levels of interregional connectivity evidenced by the architecture, texts, and artifacts found at the site during 20 years of excavations, sponsored by the Turkish Ministry of Culture and Tourism and Hatay Mustafa Kemal University, could be detected among the population buried at the city.

To do so, they conducted strontium and oxygen isotope analyses on tooth enamel, which can detect whether an individual grew up locally at Alalakh or moved there only during adulthood. The genetic data on the other hand can be used to determine where a person’s recent ancestors came from.

The isotope analysis identified several non-local individuals. However, their DNA showed an ancestry that was local to Alalakh and neighboring regions. “There are two possible explanations for our findings,” said co-lead author Stefanie Eisenmann from the Max Planck Institute for the Science of Human History. “Either these individuals are short-distance migrants from the region or return-migrants, people whose parents or grandparents originally came from Alalakh.”

Only one sampled individual, an adult woman, was not part of the local gene pool, instead showing ancestry that most closely matched groups in Central Asia. However, her isotopic signatures suggested a local upbringing. “We expected the isotope analysis to show that this person immigrated to Alalakh, since her genetic data was so different from the rest of the population, so we were surprised to see that she was likely native to Alalakh. It could have been her parents or grandparents who made the move, instead,” explained Tara Ingman, the other lead-author of the study from Koç University.

While different types of mobility were identified, including short-distance, long-distance, and return migration, there were no complete foreigners in the dataset. Most people were born and raised at Alalakh and also their ancestors came from the region.

“There are several ways to explain this. It is possible that far less long-distance migrants were living at Alalakh than we had previously thought. Another possibility is that we haven’t found their graves, yet. Perhaps most individuals that came from far away were not buried directly at Alalakh, or in a way we cannot trace,” said Murat Akar, director of the excavations.

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Map showing location of Alalakh in Turkey. Ingman et al., 2021. PLOS ONE.

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Archaeological site of Alalakh, Tell Atchana, Hatay, Turkey. Fkitselis, Creative Commons Attribution-Share Alike 3.0 Unported license, Wikimedia Commons

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The dead at Alalakh were usually buried in simple pit graves and often with ceramic vessels close to their heads. Murat Akar, Tell Atchana Excavations

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Article Source: MAX PLANCK INSTITUTE FOR THE SCIENCE OF HUMAN HISTORY news release

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