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Arctic Inuit, Native American cold adaptations may originate from extinct hominids

MOLECULAR BIOLOGY AND EVOLUTION (OXFORD UNIVERSITY PRESS)—In the Arctic, the Inuits have adapted to severe cold and a predominantly seafood diet. After the first population genomic analysis of the Greenland Inuits (Fumagalli, Moltke et al. 2015, Science doi:10.1126/science.aab2319), a region in the genome containing two genes has now been scrutinized by scientists: TBX15 and WARS2. This region is thought to be central to cold adaptation by generating heat from a specific type of body fat, and was earlier found to be a candidate for adaptation in the Inuits.

Now, a team of scientists led by Fernando Racimo, Rasmus Nielsen et al. have followed up on the first natural selection study in Inuits to trace back the origins of these adaptations.

To perform the study, they used the genomic data from nearly 200 Greenlandic Inuits and compared this to the 1000 Genomes Project and ancient hominid DNA from Neanderthals and Denisovans. The results, published in the advanced online edition of Molecular Biology and Evolution, provide convincing evidence that the Inuit variant of the TBX15/WARS2 region first came into modern humans from an archaic hominid population, likely related to the Denisovans.

“The Inuit DNA sequence in this region matches very well with the Denisovan genome, and it is highly differentiated from other present-day human sequences, though we can’t discard the possibility that the variant was introduced from another archaic group whose genomes we haven’t sampled yet.” – said Fernando Racimo, lead author of the study.

The authors found that the variant is present at low-to-intermediate frequencies throughout Eurasia, and at especially high frequencies in the Inuits and Native American populations, but almost absent in Africa. TBX15 is a gene known to affect the human body’s response to cold, and is associated with a number of traits related to body fat distribution. The authors speculate that the archaic variant may have been beneficial to modern humans during their expansion throughout Siberia and across Beringia, into the Americas.

The research team also worked to understand the physiological role of the region, which may be of interest to scientists concerned with factors that help determine BMI index and fat metabolism. They found an association between the archaic region and the gene expression of TBX15 and WARS2 in various tissues, like fibroblasts and adipose tissue. They also observed that the methylation patterns in this region in the Denisovan genome are very different from those of Neanderthals and present-day humans. “All this suggests that the introduced variant may have altered the regulation of these genes, thought the exact mechanism by which this occurred remains elusive.” – said Racimo, who was a graduate student in UC Berkeley at the time of the study, and now works at the New York Genome Center.

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 An inuit family. Wikimedia Commons

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The evidence adds to the remarkable number of recent examples of ancient interbreeding that may have conferred unique adaptive traits to modern humans, either from Neanderthals or Denisovans. And it is the second major example—the other being the EPAS1 genomic locus (found in the high altitude adaptation of Tibetans) to be passed on from archaic humans into the modern human gene pool.

Article Source: News release of Molecular Biology and Evolution

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winter2016ebookcover

 This richly illustrated issue includes the following stories: Recent findings shedding new light on the whereabouts of the remains of Philip of Macedon, father of Alexander the Great; how an archaeologist-sculptor is bringing bones of the dead back to life; archaeologists uncovering town life at the dawn of civilization; an exclusive interview with internationally acclaimed archaeologist James M. Adovasio about what makes the Meadowcroft Rockshelter prominent in the ongoing search for the first Americans; what archaeologists are finding at the site of the ancient city of Gath, the home town of the biblical Philistine giant, Goliath; and how scientists are redrawing the picture of human evolution in Europe.  Find it on Amazon.com.

 

 

  

 

 

 

 

Earliest evidence discovered of plants cooked in ancient pottery

UNIVERSITY OF BRISTOL—A team of international scientists, led by the University of Bristol, has uncovered the earliest direct evidence of humans processing plants for food found anywhere in the world.

Researchers at the Organic Geochemistry Unit in the University of Bristol’s School of Chemistry, working with colleagues at Sapienza, University of Rome and the Universities of Modena and Milan, studied unglazed pottery dating from more than 10,000 years ago, from two sites in the Libyan Sahara.

The invention of cooking has long been recognised as a critical step in human development.

Ancient cooking would have initially involved the use of fires or pits and the invention of ceramic cooking vessels led to an expansion of food preparation techniques.

Cooking would have allowed the consumption of previously unpalatable or even toxic foodstuffs and would also have increased the availability of new energy sources.

Remarkably, until now, evidence of cooking plants in early prehistoric cooking vessels has been lacking.

The researchers detected lipid residues of foodstuffs preserved within the fabric of unglazed cooking pots.

Significantly, over half of the vessels studied were found to have been used for processing plants based on the identification of diagnostic plant oil and wax compounds.

Detailed investigations of the molecular and stable isotope compositions showed a broad range of plants were processed, including grains, the leafy parts of terrestrial plants, and most unusually, aquatic plants.

The interpretations of the chemical signatures obtained from the pottery are supported by abundant plant remains preserved in remarkable condition due to the arid desert environment at the sites.

The plant chemical signatures from the pottery show that the processing of plants was practiced for over 4,000 years, indicating the importance of plants to the ancient people of the prehistoric Sahara.

Dr Julie Dunne, a post-doctoral research associate Bristol’s School of Chemistry and lead author of the paper, said: “Until now, the importance of plants in prehistoric diets has been under-recognised but this work clearly demonstrates the importance of plants as a reliable dietary resource.

“These findings also emphasise the sophistication of these early hunter-gatherers in their utilisation of a broad range of plant types, and the ability to boil them for long periods of time in newly invented ceramic vessels would have significantly increased the range of plants prehistoric people could eat.”

Co-author Professor Richard Evershed, also from Bristol’s School of Chemistry, added: “The finding of extensive plant wax and oil residues in early prehistoric pottery provides us with an entirely different picture of the way early pottery was used in the Sahara compared to other regions in the ancient world.

“Our new evidence fits beautifully with the theories proposing very different patterns of plant and animal domestication in Africa and Europe/Eurasia.”

The research was funded by the UK’s Natural Environment Research Council (NERC) and is published today in Nature Plants.

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libyandesert

 A scene in the Libyan desert. Victor Korniyenko, Wikimedia Commons

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Article Source: University of Bristol news release

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winter2016ebookcover

 This richly illustrated issue includes the following stories: Recent findings shedding new light on the whereabouts of the remains of Philip of Macedon, father of Alexander the Great; how an archaeologist-sculptor is bringing bones of the dead back to life; archaeologists uncovering town life at the dawn of civilization; an exclusive interview with internationally acclaimed archaeologist James M. Adovasio about what makes the Meadowcroft Rockshelter prominent in the ongoing search for the first Americans; what archaeologists are finding at the site of the ancient city of Gath, the home town of the biblical Philistine giant, Goliath; and how scientists are redrawing the picture of human evolution in Europe.  Find it on Amazon.com.

 

 

  

 

 

 

 

Raw foodies: Europe’s earliest humans did not use fire

UNIVERSITY OF YORK—Studying dental plaque from a 1.2 million year old hominin (early human species), recovered by the Atapuerca Research Team in 2007 in Sima del Elefante in northern Spain, archaeologists extracted microfossils to find the earliest direct evidence of food eaten by early humans.

These microfossils included traces of raw animal tissue, uncooked starch granules indicating consumption of grasses, pollen grains from a species of pine, insect fragments and a possible fragment of a toothpick.

All detected fibres were uncharred, and there was also no evidence showing inhalation of microcharcoal – normally a clear indicator of proximity to fire.

The timing of the earliest use of fire for cooking is hotly contested, with some researchers arguing habitual use started around 1.8 million years ago while others suggest it was as late as 300,000-400,000 years ago.

Possible evidence for fire has been found at some very early sites in Africa. However, the lack of evidence for fire at Sima del Elefante suggests that this knowledge was not carried with the earliest humans when they left Africa.

The earliest definitive evidence in Europe for use of fire is 800,000 years ago at the Spanish site of Cueva Negra, and at Gesher Benot Ya’aqov, Israel, a short time later.

Taken together, this evidence suggests the development of fire technology occurred at some point between 800,000 and 1.2 million years ago, revealing a new timeline for when the earliest humans started to cook food.

Dr Karen Hardy, lead author and Honorary Research Associate at the University of York and ICREA Research Professor at the Universitat Autònoma de Barcelona, said: “Obtaining evidence for any aspect of hominin life at this extremely early date is very challenging. Here, we have been able to demonstrate that these earliest Europeans understood and exploited their forested environment to obtain a balanced diet 1.2 million years ago, by eating a range of different foods and combining starchy plant food with meat.

“This new timeline has significant implications in helping us to understand this period of human evolution – cooked food provides greater energy, and cooking may be linked to the rapid increases in brain size that occurred from 800,000 years ago onwards.

“It also correlates well with previous research hypothesizing that the timing of cooking is linked to the development of salivary amylase, needed to process cooked starchy food. Starchy food was an essential element in facilitating brain development, and contrary to popular belief about the ‘Paleodiet’, the role of starchy food in the Palaeolithic diet was significant.”

Dr Anita Radini, PhD student at the University of York said: “These results are very exciting, as they highlight the potential of dental calculus to store dietary and environmental information from deep in the human evolutionary past. It is also interesting to see that pollen remains are preserved often in better conditions than in the soil of the same age. Overall this is a very positive step in the discipline, in terms of preservation of material in the calculus matrix.”

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simapicrevised

 Excavators at the site of Sima del Elefante, where the early huam remains were unearthed. Mario Modesto Mata, Wikimedia Commons

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Article Source: University of York news release

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winter2016ebookcover

 This richly illustrated issue includes the following stories: Recent findings shedding new light on the whereabouts of the remains of Philip of Macedon, father of Alexander the Great; how an archaeologist-sculptor is bringing bones of the dead back to life; archaeologists uncovering town life at the dawn of civilization; an exclusive interview with internationally acclaimed archaeologist James M. Adovasio about what makes the Meadowcroft Rockshelter prominent in the ongoing search for the first Americans; what archaeologists are finding at the site of the ancient city of Gath, the home town of the biblical Philistine giant, Goliath; and how scientists are redrawing the picture of human evolution in Europe.  Find it on Amazon.com.

 

 

  

 

 

 

 

Swedish and Greek archaeologists discover unknown city in Greece

UNIVERSITY OF GOTHENBURG—An international research team at the Department of Historical Studies, University of Gothenburg, is exploring the remains of an ancient city in central Greece. The results can change the view of an area that traditionally has been considered a backwater of the ancient world.

Archaeologists from the University of Gothenburg have begun exploring a previously unknown ancient city at a village called Vlochós, five hours north of Athens. The archaeological remains are scattered on and around the Strongilovoúni hill on the great Thessalian plains and can be dated to several historical periods.

‘What used to be considered remains of some irrelevant settlement on a hill can now be upgraded to remains of a city of higher significance than previously thought, and this after only one season,’ says Robin Rönnlund, PhD student in Classical Archaeology and Ancient History at the University of Gothenburg and leader of the fieldwork.

‘A colleague and I came across the site in connection with another project last year, and we realised the great potential right away. The fact that nobody has never explored the hill before is a mystery.’

In collaboration with the Swedish Institute at Athens and the local archaeological service in Karditsa, the Vlochós Archaeological Project (VLAP) was started with an aim to explore the remains. The project’s research team completed the first field season during two weeks in September 2016.

Rönnlund says that the hill is hiding many secrets. Remains of towers, walls and city gates can be found on the summit and slopes, but hardly anything is visible on the ground below. The ambition is to avoid excavation and instead use methods such as ground-penetrating radar, which will enable the team to leave the site in the same shape as it was in when they arrived. The success of this approach is evident from the results of the first field season:

‘We found a town square and a street grid that indicate that we are dealing with quite a large city. The area inside the city wall measures over 40 hectares. We also found ancient pottery and coins that can help to date the city. Our oldest finds are from around 500 BC, but the city seems to have flourished mainly from the fourth to the third century BC before it was abandoned for some reason, maybe in connection with the Roman conquest of the area.

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greekcity1

 Fragment of red-figure pottery from the late 6th century BC, probably by Attic painter Paseas. Credit: SIA/EFAK/YPPOA

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greekcity2

 The city’s acropolis is barely visible during a cloudy day on the Thessalian plains. Credit: SIA/EFAK/YPPOA

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Rönnlund believes that the Swedish-Greek project can provide important clues as to what happened during this violent period in Greek history.

‘Very little is known about ancient cities in the region, and many researchers have previously believed that western Thessaly was somewhat of a backwater during Antiquity. Our project therefore fills an important gap in the knowledge about the area and shows that a lot remains to be discovered in the Greek soil.’

Source: University of Gothenburg news release

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The Vlochós Archaeological Project (VLAP):

VLAP is a collaboration between the Ephorate of Antiquities of Karditsa and the Swedish Institute at Athens. In 2016-2017, a team of researchers from the University of Gothenburg and University of Bournemouth is exploring the remains of a city in Vlochós as part of the project. Read more at vlap.se

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winter2016ebookcover

 This richly illustrated issue includes the following stories: Recent findings shedding new light on the whereabouts of the remains of Philip of Macedon, father of Alexander the Great; how an archaeologist-sculptor is bringing bones of the dead back to life; archaeologists uncovering town life at the dawn of civilization; an exclusive interview with internationally acclaimed archaeologist James M. Adovasio about what makes the Meadowcroft Rockshelter prominent in the ongoing search for the first Americans; what archaeologists are finding at the site of the ancient city of Gath, the home town of the biblical Philistine giant, Goliath; and how scientists are redrawing the picture of human evolution in Europe.  Find it on Amazon.com.

 

 

  

 

 

 

 

Who made the ancient rock art?

Prehistoric human ancestors that created hand stencils in caves 40,000 years ago can now be identified as male or female with more than 90% accuracy.

Ancient hand stencils were made by blowing, spitting or stippling pigment onto a hand while it was held against a rock surface, leaving a negative impression on the rock in the shape of the hand. Hand stencils are frequently found alongside pictorial cave art created during a period known as the Upper Palaeolithic. Stencils found in Sulawesi, Indonesia date back 40,000 years, and those discovered in Europe are estimated to be as old as 37,000 years old.

This study, published today (open‐access) in the Journal of Archaeological Science, utilized techniques used in modern forensics to analyze stencils created by student volunteers and researchers as part of a collaborative research project between anthropologists and archaeologists at the University of Liverpool, the University of Central Lancashire (UCLan) and the University of the Witwatersrand (Wits) in South Africa.

University of Liverpool biological anthropologist, Dr Emma Nelson, led the study. She said: “Archaeologists are interested in hand stencils because they provide a direct, physical connection with an artist living more than 35,000 years ago”.

“Now, using a new experimental application, results from our study indicate it is possible to determine, with more than 90% accuracy, the sex of someone who lived tens of thousands of years ago, from the shape and size of their hand outline. We have even applied the method to hand stencils where digits are missing – common in Palaeolithic art – something prior studies have not been able to do.”

Previously, researchers focused on hand size and finger length, often producing conflicting results. Here, a technique called geometric morphometrics was used to detect sex‐based differences in hand shape and form. Known‐sex hand stencils were digitised and a series of 2D landmarks were applied to statistically evaluate the true shape and relative size of each stencil.

Dr Patrick Randolph‐Quinney, a forensic anthropologist at UCLAN and Wits University, said: “The problem with focussing on hand size and finger length is that two different shaped hands can have identical linear dimensions and ratios. To capture shape, we applied geometric morphometrics, a technique that had never been tested on hand stencils.”

Randolph-Quinney says this geometric approach is very powerful as it allows researchers to look at the palm and fingers independently. “It revealed that the shape of the palm is actually most indicative of the sex of the individual, rather than the finger size or length.”

Jason Hall, an archaeologist, also a member of the team from the University of Liverpool added: “As part of this study we built a replica cave wall to allow us to experiment with how art was made, and how it might look under different lighting conditions – without having to go deep underground. This ‘portable cave’ has been really popular with the public, especially school groups, who can make art in the same way that our ancestors did”.

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handstencil1

 The cave in action: Experimental reproduction of cave art in simulated cave conditions by researchers and students at the University of Liverpool. Credit: Jason Hall, University of Liverpool

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handstencil2

 The cave in daylight: An artificial portable cave wall which allows students and researchers to produce rock art without having to go underground. Credit: Jason Hall, University of Liverpool

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handstencil3

The forensic biometric landmarks used in this study applied to an experimental hand stencil. Credit: Patrick Randolph-Quinney, University of Central Lancashire and Wits University 

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Project co‐ordinator, Dr Anthony Sinclair, a Reader in Archaeology at the University of Liverpool and an expert in Palaeolithic archaeology said: “This is a great example of how archaeological science and forensic science are working together to advance our understanding of the past, and the social and cognitive systems that evolved during the Upper Palaeolithic”.

“We would encourage other researchers to apply this method to different human populations so we can build a more global understanding of hand variation.”

The full report, Beyond size: The potential of a geometric morphometric analysis of shape and form for the assessment of sex in hand stencils in rock art, appears in the Journal of Archaeological Science.

Source: University of the Witwatersrand press release

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winter2016ebookcover

 This richly illustrated issue includes the following stories: Recent findings shedding new light on the whereabouts of the remains of Philip of Macedon, father of Alexander the Great; how an archaeologist-sculptor is bringing bones of the dead back to life; archaeologists uncovering town life at the dawn of civilization; an exclusive interview with internationally acclaimed archaeologist James M. Adovasio about what makes the Meadowcroft Rockshelter prominent in the ongoing search for the first Americans; what archaeologists are finding at the site of the ancient city of Gath, the home town of the biblical Philistine giant, Goliath; and how scientists are redrawing the picture of human evolution in Europe.  Find it on Amazon.com.

 

 

  

 

 

 

 

Popular Archaeology Releases Winter 2017 Issue

winter2016:2017coverfinal

We are pleased to announce the release of the new Winter 2017 issue of Popular Archaeology Magazine. This issue features new discoveries and restoration related to fascinating ancient Roman sites from Turkey to the United Kingdom, as well as new discoveries at a promising ancient Maya site in Belize and a soon-to-be-published feature article about an emerging early Paleo-Indian site in Florida that may hold clues to a human presence more than 13,000 years ago. Following is a list of the articles featured in this issue: 

 

1. On the Frontier of an Empire (Premium Article)   

The Roman fort of Vindolanda in northern England has revealed a fascinating glimpse into the personal lives of people on the cusp between Imperial Rome and indigenous British tribes. 

         

2.  The Rise and Fall of a Maya Polity (Premium Article)

Excavations are beginning to provide clues to understanding the rise of divine kingship, urbanization, and collapse at an ancient Maya site in Belize. 

  

3.  Old Vero (Premium Article)

COMING SOON: A Pleistocene smoking gun in southeast Florida hints at a human presence pre-dating the oldest defined Paleo-Indian culture in North America.

  

4.  A Pharaoh’s Nautical Tomb (Public Access)

Archaeologists have uncovered an ancient Egyptian nautical theme and the remains of a funerary boat in a pharaonic tomb deep in the desert at Abydos.

 

5.  Restoring the Glory (Public Access)

A great ancient monumental agora in the mountains of Turkey is set to rise like a phoenix from its ruins.

 

6.  When in Rome: The Stadium of Domitian (Premium Article)

Archaeological excavations and restoration have made it possible for us to walk through ancient Rome’s first major monumental sports venue.

  

7.  Digging Deeper (Public Access)

A 21st Century Interpretation of Britain’s only known Roman Circus 

 

 

As always, we welcome any feedback you wish to provide by sending us a message at [email protected]

Thank you for joining us on our exploration of the human past!

 

Subscribe to Popular Archaeology Premium. Available on all laptops and mobile devices, and still the industry’s best value at only $9.00 annually.

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Travel and learn with Far Horizons.

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winter2016ebookcover

 This richly illustrated issue includes the following stories: Recent findings shedding new light on the whereabouts of the remains of Philip of Macedon, father of Alexander the Great; how an archaeologist-sculptor is bringing bones of the dead back to life; archaeologists uncovering town life at the dawn of civilization; an exclusive interview with internationally acclaimed archaeologist James M. Adovasio about what makes the Meadowcroft Rockshelter prominent in the ongoing search for the first Americans; what archaeologists are finding at the site of the ancient city of Gath, the home town of the biblical Philistine giant, Goliath; and how scientists are redrawing the picture of human evolution in Europe.  Find it on Amazon.com.

 

 

  

 

 

 

 

Tibetan Mastiff gained high altitude adaptation after domestication by wolf interbreeding

MOLECULAR BIOLOGY AND EVOLUTION (OXFORD UNIVERSITY PRESS)—The Tibetan Mastiff is famed for its high-altitude prowess, showing a remarkable strength and endurance to 3-mile elevations and even higher. Evolutionary biologists have successfully identified the genes responsible for this adaptation, yet an elusive question remained: Exactly how did they acquire the adaptation?

The answer, found by a Chinese research group led by Zhen Wang and Yixue Li, sheds light on not only the genetic origins of high-altitude elevation, but a remarkable tale of interbreeding in the adaptation of both dog and modern man.

Their new study demonstrates strong genetic evidence that, when man first settled into the Tibetan plateau, the recently domesticated Tibetan Mastiff interbred with the Tibet grey wolf, and a DNA swap being introduced at two genomic hotspots is the key to acquiring their special high altitude powers.

The study appears in the advanced online edition of the journal Molecular Biology and Evolution.

The recent sequencing of the dog and wolf genomes has been a boon of study to evolutionary biologists.

Now, the Chinese group utilized the genomes for their comparative Tibetan study.

First, they showed that Tibetan Mastiffs are much more closely related with other Chinese dogs rather than grey wolves. Secondly, they found two unique genomic hotspots, the EPAS1 and HBB loci, that show the significant signals of interbreeding with the Tibet grey wolf and underwent strong positive selection.

And in a spectacular coincidence, it turns out to be the same location, same gene, same mechanism—interbreeding—as in humans.

And as for modern humans? Well, other recent studies suggest that Tibetans repeated this interbreeding adaptation—recent evidence shows that they may have also acquired their high-altitude adaptation by interbreeding with an ancient hominid known as the Denisovans. Even in evolutionary biology, history may have a way of repeating itself.

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tibetanmastiff

Ancient interbreeding with the Tibet grey wolf made the Tibetan Mastiff adapt to the high altitude. A similar evolutionary mechanism occurred in parallel in the Tibetan people, who received their high altitude adaptation after inbreeding with the Denisovans.  Credit: Zhen Wang, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, P. R. China

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So perhaps it’s not surprising after all that ‘man’s best friend’ would adapt in a similar manner. The study adds to the significant evidence generated by scientists of the profound contributions and adaptations that can occur as a result of ancient interbreeding.

Article Source: Oxford University Press release

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winter2016ebookcover

 This richly illustrated issue includes the following stories: Recent findings shedding new light on the whereabouts of the remains of Philip of Macedon, father of Alexander the Great; how an archaeologist-sculptor is bringing bones of the dead back to life; archaeologists uncovering town life at the dawn of civilization; an exclusive interview with internationally acclaimed archaeologist James M. Adovasio about what makes the Meadowcroft Rockshelter prominent in the ongoing search for the first Americans; what archaeologists are finding at the site of the ancient city of Gath, the home town of the biblical Philistine giant, Goliath; and how scientists are redrawing the picture of human evolution in Europe.  Find it on Amazon.com.

 

 

  

 

 

 

 

Small Mutation Contributed to Evolution of Bigger Human Brains

A single base change in a human gene likely played an important role in evolutionary expansion of the human brain, researchers say. The results pinpoint an element unique to the human genome and to human-specific aspects of brain development. Bigger brains – an enlargement that largely reflects the increased number of neurons generated during development – are accompanied by the emergence of cognitive functions unique to humans. The human gene ARHGAP11B is the only known human-specific protein-encoding gene to promote the proliferation of neural progenitors during the development of the neocortex, the part of the human brain associated with sight and hearing. The gene arose on the human evolutionary lineage approximately one million years after divergence from the chimpanzee lineage, existed in Neanderthals and Denisovans, and is found in all present-day humans. It is also the product of a partial duplication of ARHGAP11A. Interestingly, the modern human gene lacks 55 nucleotides present in the precursor version. Here, Marta Florio, Svante Pääbo and colleagues show that the 55 nucleotides are deleted by mRNA splicing due to a single cytosine to guanine substitution that creates a novel splice site. The researchers recreated an ancestral version of the gene without the substitution and found that it exhibited similar protein activity as the paralog ARHGAP11A, but did not have the ability to increase neural progenitors. They concluded that the ability of the modern human gene to amplify neural progenitors arose not from the duplication of ARHGAP11A, but more recently, from a tiny change on the genomic scale – specifically, from a base change that led to a novel, human-specific terminal sequence in the protein encoded by the gene.

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genome

 Apical progenitors (APs) and basal progenitors (BPs) in an embryonic mouse and a fetal human neocortex. Credit: Florio et al. Sci. Adv. 2016;2:e1601941 

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 Article Source: Science Advances press release

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winter2016ebookcover

 This richly illustrated issue includes the following stories: Recent findings shedding new light on the whereabouts of the remains of Philip of Macedon, father of Alexander the Great; how an archaeologist-sculptor is bringing bones of the dead back to life; archaeologists uncovering town life at the dawn of civilization; an exclusive interview with internationally acclaimed archaeologist James M. Adovasio about what makes the Meadowcroft Rockshelter prominent in the ongoing search for the first Americans; what archaeologists are finding at the site of the ancient city of Gath, the home town of the biblical Philistine giant, Goliath; and how scientists are redrawing the picture of human evolution in Europe.  Find it on Amazon.com.

 

 

  

 

 

 

 

Secrets of the paleo diet: Discovery reveals plant-based menu of prehistoric man

THE HEBREW UNIVERSITY OF JERUSALEM—A tiny grape pip (scale 1mm), left on the ground some 780,000 years ago, is one of more than 9,000 remains of edible plants discovered in an old Stone Age site in Israel on the shoreline of Lake Hula in the northern Jordan valley, dating back to the Acheulian culture from 1.75-0.25 million years ago. The floral collection provides rich testimony of the plant-based diet of our prehistoric ancestors.

While around the world remains of Paleolithic plants are scarce, this unique macro-botanical assemblage has allowed researchers from the Hebrew University of Jerusalem and Bar Ilan University to study the vegetal diet of humans from early-mid-Pleistocene, which is central to understanding the evolution, adaptation and exploitation of the environment by hominins.

The findings were recovered during archeological excavations at the waterlogged site of Gesher Benot Ya’aqov, where the earliest evidence of human-controlled fire in western Asia was discovered in recent years.

Prof. Naama Goren-Inbar of the Institute of Archeology at the Hebrew University of Jerusalem, who conducted the excavations with colleagues, have long studied findings of hominid occupations in the Levantine Corridor, through which several hominin waves dispersed out of Africa.

In a research paper that will be published in the Proceedings of the National Academy of Sciences (PNAS) on December 5, titled “The plant component of an Acheulian diet: a case study from Gesher Benot Ya’aqov, Israel”, Prof. Goren-Inbar reveals the discovery of the ancient macrobotanical remains, which for the first time indicate to the rich variety of plant assortments and subsistence opportunities that were available to the early humans on the transition from an African-based to a Eurasian diet.

“In recent years we were met with a golden opportunity to reveal numerous remains of fruits, nuts and seeds from trees, shrubs and the lake, alongside the remains of animals and man-made stone tools in one locality,” Prof. Goren-Inbar said.

Of the remains found on site, Prof. Goren-Inbar and Dr. Yoel Melamed of the Faculty of Life Sciences at Bar Ilan University have identified 55 species of edible plants, including seeds, fruits, nuts, leaves, stems, roots and tubers.

The findings, many of them minor in size, have been preserved for hundreds of thousands of years thanks to the damp conditions in the vicinity of the site, said Dr. Melamed. The basalts under and in the site were dated by Ar/Ar and the dates were further confirmed by results of paleomagnetic analyses.

“This region is known for the wealth of plants, but what surprised us were the sources of plant food coming from the lake. We found more than 10 species that existed here in prehistoric times but no longer today, such as two types of water nuts, from which seven were edible,” explained Dr. Melamed.

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seeds

 780,000 year old remains of edible fruits and seeds discovered in the northern Jordan Valley. Credit: Yaakov Langsam

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The site was submerged under the Jordan River and the Hula Lake in conditions of humidity and lack of oxygen, aided by the fast covering of layers of sediments, in which archaeologists also found stone tools and animal fossils.

Gesher Benot Ya’aqov is also the place where Prof. Goren-Inbar found the earliest evidence of the use of fire in Eurasia (LINK). “The use of fire is very important because a lot of the plants are toxic or inedible. Using fire, like roasting nuts and roots for example, allows the use of various parts of the plant and increases the diversity of the plant component of the Acheulian diet, alongside aquatic and terrestrial fauna,” said Prof. Goren-Inbar.

The use of fire and the availability of a diverse range of flora highlight the ability of prehistoric man to adjust to a new environment, to exploit the environment for his own benefit and to colonize beyond Africa.

Article Source: Hebrew University press release

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Researchers find overwhelming evidence of malaria’s existence 2,000 years ago

MCMASTER UNIVERSITY—HAMILTON, Dec. 5, 2016 – An analysis of 2,000-year-old human remains from several regions across the Italian peninsula has confirmed the presence of malaria during the Roman Empire, addressing a longstanding debate about its pervasiveness in this ancient civilization.

The answer is in mitochondrial genomic evidence of malaria, coaxed from the teeth of bodies buried in three Italian cemeteries, dating back to the Imperial period of the 1st to 3rd centuries Common Era.

The genomic data is important, say researchers, because it serves as a key reference point for when and where the parasite existed in humans, and provides more information about the evolution of human disease.

“Malaria was likely a significant historical pathogen that caused widespread death in ancient Rome,” says evolutionary geneticist Hendrik Poinar, director of McMaster’s Ancient DNA Centre where the work was conducted.

A serious and sometimes fatal infectious disease that is spread by infected mosquitoes, malaria and its parasite Plasmodium falciparum, is responsible for nearly 450,000 deaths every year, the majority of them children under the age of five.

“There is extensive written evidence describing fevers that sound like malaria in ancient Greece and Rome, but the specific malaria species responsible is unknown,” says Stephanie Marciniak, a former post doctoral student in the Ancient DNA Centre and now a postdoctoral scholar at Pennsylvania State University.

“Our data confirm that the species was likely Plasmodium falciparum, and that it affected people in different ecological and cultural environments. These results open up new questions to explore, particularly how widespread this parasite was, and what burden it placed upon communities in Imperial Roman Italy,” she says.

Marciniak sampled teeth taken from 58 adults and 10 children interred at three Imperial period Italian cemeteries: Isola Sacra, Velia and Vagnari. Located on the coast, Velia and Isola Sacra were known as important port cities and trading centres. Vagnari is located further inland and believed to be the burial site of labourers who would have worked on a Roman rural estate.

Using techniques developed at McMaster and abroad, researchers mined tiny DNA fragments from dental pulp taken from the teeth. They were able to extract, purify and enrich specifically for the Plasmodium species known to infect humans.

It was a difficult and painstaking process, complicated by the very nature of the disease.

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romancranium

 Skeletal remains of an individual from Velia, Italy. Credit: Luca Bandioli, Pigorini Museum

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Usable DNA is challenging to extract because the parasites primarily dwell within the bloodstream and organs, including the spleen and liver, which decompose and break down over time–in this instance, over the course of two millennia.

Marciniak, Poinar, and Tracy Prowse from McMaster, alongside Luca Bandioli from the Luigi Pigorini National Museum of Prehistory and Ethnography in Rome and Edward Holmes from the University of Sydney recovered more than half of the P. falciparum mitochondrial genome from two individuals from Velia and Vagnari.

P. falciparum remains the most prevalent malaria parasite in sub-Saharan Africa and the most-deadly anywhere, responsible for the largest number of malaria-related deaths globally.

The findings are published in the journal Current Biology.

Source: McMaster University press release

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Prehistoric plant remains highlight diverse origins of cereal domestication

UNIVERSITY OF COPENHAGEN – FACULTY OF HUMANITIES—A study from the University of the Basque Country (UPV-EHU) and the University of Copenhagen shows that the process of cultivation and domestication of cereals occurred at different times across southwest Asia. The analyses of plant remains from archaeological sites dated to around 11,600-10,700 years ago suggest that in regions such as Turkey, Iran and Iraq, legumes, fruits and nuts dominated the diet, whereas cereals were the preferred types of plants in Jordan, Syria, Palestine and Israel. This means that Neolithic plant-based subsistence strategies were regionally diverse and that cereals were not staple foods in all regions.

Recent archaeological studies have suggested that the cultivation of morphologically wild plant species (pre-domestication cultivation), a precursor of agriculture, developed across southwest Asia around 11,600-10,700 years ago, during the co-called Pre-Pottery Neolithic A. In a new study published in PNAS, researchers from the University of the Basque Country and the University of Copenhagen document regional diversity in the types of plant species that were exploited during this period:

“We have studied the available archaeobotanical evidence (charred plant remains) from Pre-Pottery Neolithic sites in southwest Asia dated to approximately 11,600 to 10,700 years ago, and we can conclude that the importance we have hitherto attributed to cereals such as wheat and barley needs to be re-evaluated as other plants such as legumes – e.g. lentils, beans and peas – also played a crucial role during this time period, particularly in the eastern Fertile Crescent, e.g. Iran and Iraq, and southeast Turkey” says postdoc and archaeobotanist Amaia Arranz-Otaegui from the Centre for the Study of Early Agricultural Societies at the University of Copenhagen.

The origins of domesticated cereals

Not only did Neolithic communities from various regions across southwest Asia exploit a different range of plants – and did thus not rely exclusively on cereals – but the evidence also suggests that the different plant exploitation strategies could have contributed to important chronological dissimilarities during the emergence of morphologically domesticated species:

“Our results indicate that in the southern Levant (e.g. modern-day Jordan, Israel, Palestine and southern Syria), cereals were predominant during the Pre-Pottery Neolithic A (PPNA, 11,600-10,700 years ago) and domesticated cereals, which eventually became the cornerstones of agriculture, appeared around 10,700-10,200 years ago. But in the eastern Fertile Crescent, where cereals were not commonly exploited during the PPNA, domesticated cereals appear around 400-1000 years later. We know that plant domestication was a process that occurred in multiple regions and involved several plant species, so it is likely that in those regions where cereal exploitation was not common practice, similar management processes involving plants such as legumes could have existed,” Amaia Arranz-Otaegui points out.

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syriasite

 Tell Qarassa North, Southern Syria, early Pre-Pottery Neolithic B, (10,700-10,200 cal BP). One of the earliest sites in southwest Asia with evidence of morphologically domesticated wheat and barley. Credit: Juan José Ibañez

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cerealpic

 Modern-day harvesting of wild barley in southern Syria. Credit: Juan José Ibañez

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Arranz Otaegui conducted the study “Regional diversity on the timing for the initial appearance of cereal cultivation and domestication in southwest Asia” with colleagues from Spain (Instituto Mila i Fontanals, CSIC, Instituto Internacional de Investigaciones Prehistoricas de Cantabria) and England (University Colledge London) when she was still employed at the University of the Basque Country.

Source: University of Copenhagen press release

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Bitumen from Middle East discovered in 7th century buried ship in UK

PLOS—Middle Eastern Bitumen, a rare, tar-like material, is present in the seventh century ship buried at Sutton Hoo, according to a study* published in the open-access journal PLOS ONE on November 30, 2016 by Pauline Burger and colleagues from the British Museum, UK and the University of Aberdeen.

The seventh century ship found within a burial mound at Sutton Hoo, UK was first excavated in 1939 and is known for the spectacular treasure it contained including jewellery, silverware, coins, and ceremonial armour. The site is thought to be an example of the European ship-burial rites of the time, and also includes a burial chamber where a corpse was likely laid. Fragments of black organic material found in this chamber were originally identified as locally-produced ‘Stockholm Tar’ and linked to repair and maintenance of the ship. The authors of the present study re-evaluated these previously-identified samples, as well as other tar-like materials found at the site, using imaging techniques and isotopic analysis and found the samples had been originally misidentified.

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bitumen

RTI images of surface morphology on fragments from 1939,1010.251. Upper images (A, B and C) show concentric rings suggestive of working or worked imprints; lower images show natural fracture surface on the same fragments (D and E) and on a reference specimen of bitumen (F). Credit: Burger et al (2016)

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By comparing the samples from Sutton Hoo to various reference materials, the researchers’ analysis revealed that the previously-identified ‘Stockholm Tar’ lumps actually displayed the molecular and isotopic characteristics of archaeological bitumen, and specifically bitumen from the Middle East rather than from a local British source. Archaeological finds of bitumen from this period in Britain are extremely rare and the authors state that this finding is the first material evidence for trading of Middle Eastern bitumen northwards into the British Isles.

While the original form and purpose of the bitumen could not be discerned from the remaining fragments, the authors suggest that it may have been included deliberately in the burial chamber, possibly the remaining components of ornamental objects adorning the grave, or perhaps included as a prestigious raw material.

Article Source: PLOS news release

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*Burger P, Stacey RJ, Bowden SA, Hacke M, Parnell J (2016) Identification, Geochemical Characterisation and Significance of Bitumen among the Grave Goods of the 7th Century Mound 1 Ship-Burial at Sutton Hoo (Suffolk, UK). PLoS ONE 11(11): e0166276. doi:10.1371/journal.pone.0166276

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Bone scans suggest early hominin ‘Lucy’ spent significant time in trees

PLOS—Scans of bones from “Lucy,” the 3.18 million-year-old Australopithecus afarensis fossil, suggest that the relative strength of her arms and legs was in between that of modern chimpanzees and modern humans, according to a study published November 30, 2016 in the open-access journal PLOS ONE by Christopher Ruff from Johns Hopkins University School of Medicine, USA, and colleagues.

Early human ancestors are thought to have walked on the ground to some degree, but determining how much–and how well–has been difficult. This is partly because their long arms could have been remnants of their forebears rather than adaptive in their own lives. To assess how much Australopithecus afarensis used their arms in locomotion, Ruff and colleagues compared X-ray microtomography scans, in which cross-sections of an object are used to recreate a 3D model without destruction of the specimen, of Lucy’s upper arm bone (humerus) and upper leg bone (femur) with those of modern chimpanzees and modern humans.

The scans revealed that the relative strength of Lucy’s humerus and femur was intermediate between those of today’s chimpanzees and humans. This suggests that Australopithecus afarensis spent a significant amount of time using their arms to move through trees, possibly to forage for food and escape predators. In addition, analysis of Lucy’s femur suggests that Australopithecus afarensis‘ walking gait may have been less efficient than that of modern humans, limiting their mobility on the ground. Based on their findings, the researchers suggest that moving through trees may have remained important to some early human ancestors for millions of years.

Ruff adds: “This is the most direct evidence to date that Lucy and her relatives actually spent a significant portion of their time in the trees.”

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lucyskeleton

 The fossils that make up the Lucy skeleton. Credit: John Kappelman/University of Texas at Austin

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lucyboneclones

 Lucy skull cast. Bone Clones, Wikimedia Commons

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Article Source: PLOS news release

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*Ruff CB, Burgess ML, Ketcham RA, Kappelman J (2016) Limb Bone Structural Proportions and Locomotor Behavior in A.L. 288-1 (“Lucy”). PLoS ONE 11(11): e0166095. doi:10.1371/journal.pone.0166095

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Analysis of Iron Age ceramics suggests complex pattern of Eastern Mediterranean trade

PLOS—Cypriot-style pottery may have been locally produced as well as imported and traded in Turkey during the Iron Age, according to a study* published November 30, 2016 in the open-access journal PLOS ONE by Steven Karacic from Florida State University, USA, and James Osborne of the University of Chicago, USA.

White Painted and Bichrome Wares are Cypriot-style ceramics produced during the Iron Age that may provide clues about trade in the Eastern Mediterranean at that time. Although these ceramics are often assumed to be imports from Cyprus, excavations in southern Turkey have suggested that some pottery was produced locally, challenging previous assumptions about trade in the Eastern Mediterranean.

The authors of the present study analyzed White Painted and Bichrome Wares recovered from three sites in the Hatay region of Turkey: Tell Tayinat, Çatal Höyük, and Tell Judaidah, using techniques which bombarded the pottery with x-rays and neutrons, providing insight into the chemical elements they contained. Imported and local versions of this pottery had different elemental compositions, which helped the authors determine where this pottery was produced. When compared with existing datasets, the researchers found that Çatal Höyük and Tell Judaidah may only have had access to pottery imported from Cyprus whereas Tell Tayinat may have made Cypriot-style pottery locally as well as importing it.

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cypriotpottery

 

Cypro-Geometric III and Cypro-Archaic I (ca. 850-600 BCE) pottery from Tell Tayinat, ancient Kunulua.

(1-3) White Painted Ware vertical-sided bowls; (4-7) White Painted Ware barrel jugs; (8-10) Bichrome Ware vertical-sided bowls; (11-12) Bichrome Ware barrel jugs; (13) Bichrome Ware juglet.  Credit: Karacic et al (2016)

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cypriotjug2

 Example of a white painted ware IV ancient Cypriot jug, 7th century BC.  Zde, Wikimedia Commons

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The authors suggest that feasting practices amongst the affluent in Tell Tayinat may have driven demand for Cypriot-style pottery, resulting in either local potters producing this pottery or Cypriot potters settling in the vicinity. Usually, pottery styles are expected to become increasingly rare the further away they are found from their origin of production, so these findings suggest a complex pattern of exchange in the Eastern Mediterranean during the Iron Age.

“We were surprised to find that locally produced Cypriot-style pottery was consumed at Tell Tayinat but not the other sites included in our study,” says Karacic. “These results indicate complex social and economic interactions between the Amuq and Cyprus that we are only just beginning to understand for the Iron Age.”

Article Source: PLOS news release

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*Karacic S, Osborne JF (2016) Eastern Mediterranean Economic Exchange during the Iron Age: Portable X-Ray Fluorescence and Neutron Activation Analysis of Cypriot-Style Pottery in the Amuq Valley, Turkey. PLoS ONE 11(11): e0166399. doi:10.1371/journal.pone.0166399

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Turkeys were a major part of ancestral Pueblo life

WASHINGTON STATE UNIVERSITY—While the popular notion of the American Thanksgiving is less than 400 years old, the turkey has been part of American lives for more than 2,000 years. But for much of that time, the bird was more revered than eaten.

Washington State University archaeologists over the years have repeatedly seen evidence, from bones to blankets to DNA extracted from ancient poop, suggesting that the Pueblo people of the Southwest bred turkeys as far back as 200 B.C.

“Turkeys were an important bird symbolically and in practical ways as a source of feathers that kept people warm in the winter,” said Bill Lipe, a WSU professor emeritus of anthropology with decades of experience in the area. “And they were also important as a food source, probably primarily at periodic feasts and ritual gatherings.”

Ritual and practical importance

In what is called the Basketmaker II era, which ran from 400 B.C. to 500 A.D., ancient Pueblo people shifted from making blankets of rabbit fur to using turkey feathers. One blanket could require 12,000 feathers, which could be taken as the birds molted.

The blankets helped ward off the high-altitude chill of Mesa Verde, but the turkeys also “must have had some symbolic importance,” said Lipe. “That continues all the way through to the present. Turkey feathers are still ritually quite important among Pueblo people.”

In the late 1100s, the Pueblo population boomed from what is now Mesa Verde National Park over into nearby southeast Utah. Computer models developed at WSU by anthropologists Tim Kohler and Kyle Bocinsky suggest that deer, a major protein source, were getting hunted out and replaced by turkeys as a source of meat.

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mesaverdepic

 Mesa Verde cliff dwellings, Colorado. Wikimedia Commons

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Thanksgiving then, too

That’s reflected in the decline of deer bones found in ancient middens, or waste sites, and the rise in the number of turkey bones, said Lipe.

“At some of the larger sites it looks as if they were getting the majority of their meat supply from turkeys, with deer and rabbits being less important,” he said.

Per-capita consumption appears to have averaged around three-fourths to one and a half turkeys per year. That’s not much, but in a village of 500 people, it adds up.

“This was an important bird as a food source as well as symbolically important and valuable for making warming blankets throughout this whole period,” Lipe said. “Turkeys were one of the things they had to be thankful for.”

Maize on the menus

The bird was no Butterball. In fact, said Lipe, historical and genetic evidence indicates a different variety—independently domesticated in Mexico—was taken by the Spanish to Europe. It was later brought back to North America, where it became the basis for the present-day turkey raising industry.

Lipe’s research is looking at the cost to Pueblo people of raising turkeys for meat. About three-fourths of the Pueblo diet was maize, a type of corn, and raising a turkey required either diverting a substantial amount of the crop to the bird or growing more. Lipe calculates that raising one turkey per person each year could consume roughly one-fourth of the maize harvest.

“Converting maize to turkey meat would have added to the risks of farming in a dry-farming area that had highly variable rainfall patterns,” Lipe said. “Of course, in case of a crop failure, the turkey flock could have been reduced, but probably at the risk of increasing the risk of nutritional problems, especially in children.”

Relocation, less reliance on turkeys

Lipe is gathering data that indicates turkey consumption in the Mesa Verde area peaked in the 1200s when the human population was also peaking. Over the following century, the area underwent a massive depopulation, emptying out the elaborate cliff dwellings with which the people are so often identified.

There’s good evidence that many of the people moved to the northern Rio Grande area about 200 miles southeast to escape a variety of stresses: the threat of warfare, recurring drought and new community leadership and organization, Lipe said. It’s possible, he said, that yet another contributing factor was “the costs and risks of raising large flocks of turkeys.”

The people continued to raise turkeys in the Rio Grande area, but archaeological evidence indicates they went back to relying more on deer for meat.

Source: Washington State University press release

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Native Americans raised classic holiday bird centuries before Thanksgiving

FLORIDA STATE UNIVERSITY—Hundreds of years before the first Thanksgiving, Native Americans were raising and feasting on America’s classic holiday meal.

Florida State University Associate Professor of Anthropology Tanya Peres and graduate student Kelly Ledford write in a paper published today in the Journal of Archaeological Science: Reports that Native Americans as early as 1200 – 1400 A.D. were managing and raising turkeys.

This is the first time scientists have suggested that turkeys were potentially domesticated by early Native Americans in the southeastern United States.

“In the Americas, we have just a few domesticated animals,” Peres said. “Researchers haven’t really talked about the possibility of Native Americans domesticating or raising turkeys.”

Researchers knew that turkeys had been a part of Native American life long before the first Thanksgiving in 1621.

Their feathers were used on arrows, in headdresses and clothing. The meat was used for food. Their bones were used for tools including scratchers used in ritual ceremonies. There are even representations of turkeys in artifacts from the time. An intricately engraved marine shell pendant found at a site in central Tennessee shows two turkeys facing each other.

But this new research indicates turkeys were more than just a casual part of life for Native Americans of that era. Peres and Ledford came across a few curiosities as they examined skeletons of turkeys from archaeological sites in Tennessee that led them to believe that Native Americans were actively managing these fowls.

For one, the groupings researchers worked on had more male turkeys than a typical flock.

In a typical flock of turkeys, there are usually more females, Peres said. But in the flock they examined, they found more remains of males. That would only happen if it were designed that way, she said.

“It appears Native Americans were favoring males for their bones for tools,” Peres said. “And they certainly would have favored males for their feathers. They tend to be much brighter and more colorful than the female species. Female feathers tend to be a dull grey or brown to blend in to their surroundings since they have to sit on the nest and protect the chicks.”

The other immediately noticeable trait that stood out to Peres and Ledford was that these ancient American gobblers were big boned — much larger than today’s average wild turkey. That could be the result of them being purposefully cared for or fed diets of corn.

“The skeletons of the archaeological turkeys we examined were quite robust in comparison to the skeletons of our modern comparatives,” Ledford said. “The domestication process typically results in an overall increase in the size of the animal so we knew this was a research avenue we needed to explore.”

Peres and Ledford are working with colleagues at Washington State University to perform a DNA sequencing of these turkeys and also conduct experiments to see what the turkeys were eating. If they were being fed corn, a chemical signature should appear in the remains.

Ledford is also collecting data from additional sites across the southeastern United States to see if this pattern of managing turkeys was consistent across settlements or if it was an isolated practice.

“It might be that not everybody was practicing this, but some people were for sure,” Peres said.

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firstthanksgiving

 The first Thanksgiving. Painting print from the Library of Congress, Wikimedia Commons

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Article Source: Florida State University press reease

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Rice farming in India much older than thought

UNIVERSITY OF CAMBRIDGE—The latest research on archaeological sites of the ancient Indus Civilisation, which stretched across what is now Pakistan and northwest India during the Bronze Age, has revealed that domesticated rice farming in South Asia began far earlier than previously believed, and may have developed in tandem with – rather than as a result of – rice domestication in China.

The research also confirms that Indus populations were the earliest people to use complex multi-cropping strategies across both seasons, growing foods during summer (rice, millets and beans) and winter (wheat, barley and pulses), which required different watering regimes. The findings suggest a network of regional farmers supplied assorted produce to the markets of the civilisation’s ancient cities.

Evidence for very early rice use has been known from the site of Lahuradewa in the central Ganges basin, but it has long been thought that domesticated rice agriculture didn’t reach South Asia until towards the end of the Indus era, when the wetland rice arrived from China around 2000 BC. Researchers found evidence of domesticated rice in South Asia as much as 430 years earlier.

The new research is published today in the journals Antiquity and Journal of Archaeological Science by researchers from the University of Cambridge’s Division of Archaeology, in collaboration with colleagues at Banaras Hindu University and the University of Oxford.

“We found evidence for an entirely separate domestication process in ancient South Asia, likely based around the wild species Oryza nivara. This led to the local development of a mix of ‘wetland’ and ‘dryland’ agriculture of local Oryza sativa indica rice agriculture before the truly ‘wetland’ Chinese rice, Oryza sativa japonica, arrived around 2000 BC,” says study co-author Dr Jennifer Bates

“While wetland rice is more productive, and took over to a large extent when introduced from China, our findings appear to show there was already a long-held and sustainable culture of rice production in India as a widespread summer addition to the winter cropping during the Indus civilisation.”

Co-author Dr Cameron Petrie says that the location of the Indus in a part of the world that received both summer and winter rains may have encouraged the development of seasonal crop rotation before other major civilisations of the time, such as Ancient Egypt and China’s Shang Dynasty.

“Most contemporary civilisations initially utilised either winter crops, such as the Mesopotamian reliance on wheat and barley, or the summer crops of rice and millet in China – producing surplus with the aim of stockpiling,” says Petrie.

“However, the area inhabited by the Indus is at a meteorological crossroads, and we found evidence of year-long farming that predates its appearance in the other ancient river valley civilisations.”

The archaeologists sifted for traces of ancient grains in the remains of several Indus villages within a few kilometers of the site called Rakhigari: the most recently excavated of the Indus cities that may have maintained a population of some 40,000.

As well as the winter staples of wheat and barley and winter pulses like peas and vetches, they found evidence of summer crops: including domesticated rice, but also millet and the tropical beans urad and horsegram, and used radiocarbon dating to provide the first absolute dates for Indus multi-cropping: 2890-2630 BC for millets and winter pulses, 2580-2460 BC for horsegram, and 2430-2140 BC for rice.

Millets are a group of small grain, now most commonly used in birdseed, which Petrie describes as “often being used as something to eat when there isn’t much else”. Urad beans, however, are a relative of the mung bean, often used in popular types of Indian dhal today.

In contrast with evidence from elsewhere in the region, the village sites around Rakhigari reveal that summer crops appear to have been much more popular than the wheats of winter.

The researchers say this may have been down to the environmental variation in this part of the former civilisation: on the seasonally flooded Ghaggar-Hakra plains where different rainfall patterns and vegetation would have lent themselves to crop diversification – potentially creating local food cultures within individual areas.

This variety of crops may have been transported to the cities. Urban hubs may have served as melting pots for produce from regional growers, as well as meats and spices, and evidence for spices have been found elsewhere in the region.

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 Excavating a pit from which archaeobotanical samples were collected at the Indus Civilization site of Masudpur I in northwest India.  Credit: Cameron Petrie

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While they don’t yet know what crops were being consumed at Rakhigarhi, Jennifer Bates points out that: “It is certainly possible that a sustainable food economy across the Indus zone was achieved through growing a diverse range of crops, with choice being influenced by local conditions.

“It is also possible that there was trade and exchange in staple crops between populations living in different regions, though this is an idea that remains to be tested.”

“Such a diverse system was probably well suited to mitigating risk from shifts in climate,” adds Cameron Petrie. “It may be that some of today’s farming monocultures could learn from the local crop diversity of the Indus people 4,000 years ago.”

The findings are the latest from the Land, Water and Settlement Project, which has been conducting research on the ancient Indus Civilisation in northwest India since 2008.

Article Source: University of Cambridge news release.

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A National Treasure Tells the Story of Hawaii’s Heritage

As Founder and Editor of Popular Archaeology Magazine, Dan is a freelance writer and journalist specializing in archaeology.  He studied anthropology and archaeology in undergraduate and graduate school and has been an active participant on archaeological excavations in the U.S. and abroad.  He is the creator and administrator of Archaeological Digs, a popular weblog about archaeological excavation and field school opportunities.  

Sitting in a back room in a museum in Honolulu, Hawaii, a young Canadian archaeologist worked intently to catalogue thin section slides of 3,000-year old Lapita pottery acquired from archaeological sites in western Pacific islands. Cut with a diamond saw and then ground flat to a thickness measured only in microns, these thin slices of pottery are mounted on glass slides for close scientific examination.

“The slides can be examined under a powerful microscope to identify the minerals contained in the pottery, which can tell archaeologists about the type of clay and inclusions used to form the pottery, which can then be used to track the movement of raw materials,” said Kate Leonard, the archaeologist cataloging the slides.  

Leonard’s work is an example of how archaeology is conducted beyond the typical field operations, or excavations, that most people read about in the popular press. In fact, most archaeology is performed in places other than the field. What Leonard is doing is a small part of the total research picture that constitutes the vital behind-the-scenes work of archaeology. In this case, scientific scrutiny of these thin slices of Lapita pottery will help tell a story of who the original inhabitants of the Hawaiian Islands really were and where their ancestors came from before they became indigenous Hawaiians. The Lapita culture is known to be a prehistoric Pacific Ocean people who thrived between 1600 BCE and 500 BCE. Based on research conducted thus far, archaeologists suggest that they are ancestral to the historic indigenous cultures of Polynesia, Micronesia, and some coastal areas of Melanesia. They are thought to have been experts in seamanship and navigation, eventually colonizing Pacific islands hundreds of miles apart. Their descendants, known today as the Polynesians, came to populate islands such as Hawaii and Easter Island, and some archaeologists suggest they may even have reached as far as the South American continent. 

“The first archaeologists to study the islands relied heavily on terrestrial surveys, traditional architecture, oral history and mythologies to form their hypotheses about the first settlers of Hawaiʻi and their way of life,” continued Leonard. “Based on linguistics and oral traditions it was clear even at this early stage of Hawaiian archaeology that people had navigated the Pacific Ocean from Central East Polynesia to settle the Hawaiian Islands and develop the complex and thriving Ancient Hawaiian culture that Europeans first encountered in the late 1700s. These great voyages relied on the skills of master navigators who used the stars, winds and currents to direct their course across the vast ocean.” The vast number of artifacts recovered by archaeologists now have added considerably to understanding this picture.  

Leonard was working in Archaeology Collections, housed in the Anthropology Department of Hawaii’s famous Bernice Pauahi Bishop Museum, also known as the Hawaiʻi State Museum of Natural and Cultural History. She was doing more than cataloging slides of Lapita pottery slices. She was also scanning and cropping archival photos from the ‘Stokes Collection’. “Together with William Brigham, the first director of the Bishop Museum, John F. G. Stokes was part of the first major archaeological survey of Hawaiian heiau in 1906-1909,” said Leonard. “These photos of archaeological sites, people and places are a record of Hawai‘i long before the tourists and resorts arrived. Some of these collections will soon be available through a new online database, and through them we can see the Hawai‘i that Brigham and Stokes were exploring over 100 years ago.”

Leonard, and many archaeologists like her, believe that, in addition to the groundbreaking excavations and field research that archaeologists do, their work often produces the most significant and far-reaching results in the backrooms and labs of museums all over the world, like the Bishop Museum. Perhaps more important, it is where the great discoveries and the artifacts that illustrate them meet the public, the most important ‘clients’ and consumers of the fruits of archaeology.  

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Above and below: Today the Bishop Museum is considered the premier natural and cultural history institution in the Pacific. The primary purpose of the museum is to serve and represent the interests of Native Hawaiians. In addition to the main exhibition areas that feature Hawaiian and Pacific natural and cultural history, the museum has an active program of rotating exhibits. While I was there I was shown around the ‘Journeys: Heritage of the Northwestern Hawaiian Islands’ exhibit that is ongoing until the end of February 2017. This is one of many examples of how the Bishop Museum staff is working to use their existing collections to develop dynamic programming for its visitors.  — Kate Leonard

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“One big initiative that is going on in many museums is to use technology to make their collections more accessible – so even if you can’t go to the museum itself you can hear the stories their collections have to tell,” said Leonard. For its part, the Bishop Museum is creating online databases so researchers and the public can explore and study the collections remotely. To this end, the museum has organized groups of volunteers to process and digitize them, resulting in databases like the Ho‘omaka Hou Research Initiative Online Fishhook Database (which contains over 4,000 fishhooks that were excavated from three different sites on Hawaiʻi Island in the 1950s), the Hawaiian Archaeological Survey (HAS) Database, and the Rapa Nui Interactive Radiocarbon Database, all of which can now be accessed through the museum website.   

Moreover, the museum is also using its collections for applying non-destructive techniques to pull new information from the artifacts — such as using a portable XRF (x-ray fluorescence) machine to “zap” stone adzes. Results of this application reveals the elemental composition of the stone, giving clues about the origin of the artifact material.

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 “It looks like it was taken off the set of Star Trek!” said Leonard of this portable x-ray fluorescence machine.

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The Bishop Museum is located in west Honolulu, set on land originally occupied by the Kamehameha Schools boys’ campus. Princess Bernice Pauahi Bishop was the last member of the royal Kamehameha Dynasty which ruled the (then) Kingdom of Hawaiʻi from 1810 – 1872. After she died in 1884, her husband, Charles Reed Bishop, established the museum in her honor. Her royal heirlooms are housed there. Today, the museum is considered “the premier natural and cultural history institution in the Pacific,” and, in addition to its permanent collections and exhibits, runs a program of rotating exhibits for its visitors. 

To learn more about the Bishop Museum, see the website.

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Leonard’s time at the Bishop Museum was for but a brief period. She has moved on to Toronto for a stint at the Royal Ontario Museum and then on to Switzerland, where she will be participating in other projects as part of a global year-long journey to work at twelve different archaeological sites in 12 separate countries. She calls her project Global Archaeology: A Year of Digs. Hawaii was the 10th stop on her global trek. 

Popular Archaeology will be following and reporting on Leonard’s worldwide experiences periodically throughout 2016 as she hops from one location to another during her global journey. To continue the work, however, Leonard will need financial support from donors. Readers interested in reading about and supporting her self-directed Global Archaeology crowdfunded project can learn more at gofundme.com/globalarchaeology.

You can read more about Leonard’s experience on Hawaii here.

 

Did you like this? See the major feature article, The God-Kings of Paradise, now a free premium article at Popular Archaeology.

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 This richly illustrated issue includes the following stories: Recent findings shedding new light on the whereabouts of the remains of Philip of Macedon, father of Alexander the Great; how an archaeologist-sculptor is bringing bones of the dead back to life; archaeologists uncovering town life at the dawn of civilization; an exclusive interview with internationally acclaimed archaeologist James M. Adovasio about what makes the Meadowcroft Rockshelter prominent in the ongoing search for the first Americans; what archaeologists are finding at the site of the ancient city of Gath, the home town of the biblical Philistine giant, Goliath; and how scientists are redrawing the picture of human evolution in Europe.  Find it on Amazon.com.

 

 

  

 

 

 

 

DNA study unravels the history of the world’s most produced cereal

FACULTY OF SCIENCE – UNIVERSITY OF COPENHAGEN—An ancient maize genome sequence of a 5,310-year-old maize cob provides new insights into the early stages of maize domestication. The specimen is important because it dates to a point in time approximately halfway between the beginning of maize domestication and today’s corn. In a gene-by-gene analysis, the ancient sample shows that many key genes had already been affected by human selection, including the lack of a hard seed coat and changes in flowering time. Other traits were not yet under selection, including sugar content of the kernels and, surprisingly, a gene that is related to dispersal of kernels from the plant. These details are the result of a study conducted by postdoc Nathan Wales and PhD student Jazmín Ramos Madrigal from the Natural History Museum of Denmark. The results have just been published in the scientific journal Current Biology.

Researchers have long debated how and why ancient people domesticated maize, in large part because the wild ancestor of maize–known as teosinte–provides surprisingly little nutrition. Each teosinte ear produces only 5 to 12 kernels, and each kernel is surrounded by a hard casing that must be removed prior to eating.

Now, the impressive study of a 5,310-year-old maize cob from the Tehuacan Valley of Mexico brings us closer to answering these questions.

– Our study is like a genomic window into the past, says postdoc Nathan Wales, who has conducted the research together with his colleague PhD student Jazmín Ramos Madrigal, both from the Natural History Museum of Denmark.

Jazmín Ramos adds:

– By exploring the genetic history of this ancient maize it is now possible for us to infer how people used the crop in the past, selecting for certain traits at different points in time.

The study first of all shows that the ancient cob is genetically intermediate between teosinte and modern maize.

A half modern maize

In a gene-by-gene analysis, the ancient sample shows that many key genes had already been modified through human selection, including the lack of a hard seed coat and changes in flowering time.

Other traits were not yet under selection, including sugar content of the kernels and, surprisingly, a gene that is related to dispersal of kernels from the plant.

Nathan Wales explains:

– Wild plants naturally release their seeds at the appropriate time, but humans have modified domesticated cereals so they retain their seeds so they can be easily collected from fields. The finding that the ancient maize cob has the ancestral version of the gene is unexpected and encourages further research.

From a snack to a proper meal

Archaeological evidence suggests the people who planted and consumed maize 5000 years ago likely lived in small groups of several dozen people from extended families.

This could be an explanation for why the ancient Tehuacan Valley maize is morphologically and genetically so distinct from modern corn says Jazmín Ramos Madrigal and continues:

– Unlike most modern farmers, these ancient people moved seasonally and mostly consumed wild plants and animals, but supplemented their diets with some domesticated plants. It was only during later periods with higher populations and socially stratified societies that maize became the food staple. For example, the Olmecs (~1200 BC) and the Maya (200BC – 1000 AD) required reliable and predictable food sources to support their cities, and it was at that point that maize would have undergone further selection for important traits.

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 Maize of Mexico. Amefuentes, Wikimedia Commons

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Article Source: FACULTY OF SCIENCE – UNIVERSITY OF COPENHAGEN press release.

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Autism and human evolutionary success

UNIVERSITY OF YORK—A subtle change occurred in our evolutionary history 100,000 years ago which allowed people who thought and behaved differently – such as individuals with autism – to be integrated into society, academics from the University of York have concluded.

The change happened with the emergence of collaborative morality – an investment in the well-being of everyone in the group – and meant people who displayed autistic traits would not only have been accepted but possibly respected for their unique skills.

It is likely our ancestors would have had autism, with genetics suggesting the condition has a long evolutionary history.

But rather than being left behind, or at best tolerated, the research team conclude that many would have played an important role in their social group because of their unique skills and talents.

“We are arguing that diversity, variation between people, was probably more significant in human evolutionary success than the characteristics of one person, “said Penny Spikins, senior lecturer in the archaeology of human origins, at the University of York.

“It was diversity between people which led to human success and it is particularly important as it gives you different specialised roles.

“We are arguing that it is the rise of collaborative morality that led to the possibility for widening the diversity of the human personality.”

Many people with autism have exceptional memory skills, heightened perception in realms of vision, taste and smell and enhanced understanding of natural systems such as animal behaviour.

The incorporation of some of these skills into a community would play a vital role in the development of specialists, the authors of the report, which is published in Time and Mind, suggest.

A previous ethnographic study in 2005 of an elderly reindeer herder from Siberia revealed a detailed memory of the parentage, medical history and character of each one of his 2,600 animals.

His vital knowledge would have made a significant contribution to their management and survival.

The grandfather was more comfortable in the company of the reindeer than of humans, but was much respected and had a wife and son and grandchildren.

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caveart

Are there clues of autistic traits in cave art? Above is a prehistoric representation of lions, painted on the walls of the Chauvet Cave in France. Courtesy University of York 

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Finding tangible evidence of autism in archaeological records has always been challenging for academics.

Dr Spikins said “The archaeological record doesn’t give us a skeletal record for autism, but what it does do is give us a record for other people who have various differences and how they have been integrated.”

Other clues can be found in cave art and other artefacts.

“There has been a long-standing debate about identifying traits of autism in Upper Palaeolithic cave art.

“We can’t say some of it was drawn by someone with autism, but there are traits that are identifiable to someone who has autism. It was also roughly at that time that we see collaborative morality emerging.”

Source: University of York press release.

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 This richly illustrated issue includes the following stories: Recent findings shedding new light on the whereabouts of the remains of Philip of Macedon, father of Alexander the Great; how an archaeologist-sculptor is bringing bones of the dead back to life; archaeologists uncovering town life at the dawn of civilization; an exclusive interview with internationally acclaimed archaeologist James M. Adovasio about what makes the Meadowcroft Rockshelter prominent in the ongoing search for the first Americans; what archaeologists are finding at the site of the ancient city of Gath, the home town of the biblical Philistine giant, Goliath; and how scientists are redrawing the picture of human evolution in Europe.  Find it on Amazon.com.