Wednesday, August 14, 2024

  

Cook like a Neanderthal: Scientists try to replicate ancient butchering methods to learn how Neanderthals ate birds



A pilot study indicates that fire-roasted birds are easier to process, but only birds butchered raw show cutmarks — evidence that we can use to understand Neanderthal diets



Frontiers

A scientist defeathers one of the birds 

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A scientist defeathers one of the birds. Image by Dr Mariana Nabais.

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Credit: Dr Mariana Nabais.




It's hard to know what Neanderthals ate: food preparation, especially when it comes to smaller items like birds, can leave few archaeological traces. But understanding their diets is critical to understanding these incredibly adaptable hominins, who thrived for hundreds of thousands of years in wildly varied environments. To learn what food preparation could look like in the archaeological record, scientists tried cooking like Neanderthals.

“Using a flint flake for butchering required significant precision and effort, which we had not fully valued before this experiment,” said Dr Mariana Nabais of the Institut Català de Paleoecologia Humana i Evolució Social in Spain, lead author of the article in Frontiers in Environmental Archaeology. “The flakes were sharper than we initially thought, requiring careful handling to make precise cuts without injuring our own fingers. These hands-on experiments emphasized the practical challenges involved in Neanderthal food processing and cooking, providing a tangible connection to their daily life and survival strategies.”

You are what you eat

Although the big game hunting practiced by Neanderthals is well known, we know less about the birds that some Neanderthals hunted. But recent discoveries and new techniques allow us to investigate this more deeply. By testing food preparation methods that Neanderthals could have used, to see what traces these might leave on bones and how those traces compare to damage caused by natural processes or the actions of other animals, the scientists created an experimental database that can be compared to real archaeological sites.

The scientists collected five wild birds that had died of natural causes from the Wildlife Ecology, Rehabilitation and Surveillance Centre (CERVAS) in Gouveia, Portugal. They chose two carrion crows, two collared doves, and a wood pigeon, which are similar to species that Neanderthals ate, and selected cooking methods using archaeological evidence and ethnographic data.

All the birds were defeathered by hand. A carrion crow and a collared dove were then butchered raw, using a flint flake. The remaining three were roasted over hot coals until cooked, then butchered, which the scientists found much easier than butchering the raw birds.

“Roasting the birds over the coals required maintaining a consistent temperature and carefully monitoring the cooking duration to avoid overcooking the meat,” said Nabais. “Maybe because we defeathered the birds before cooking, the roasting process was much quicker than we anticipated. In fact, we spent more time preparing the coals than on the actual cooking, which took less than ten minutes.”

Putting flesh on prehistoric bones

The scientists cleaned and dried the bones, then examined them microscopically for cutmarks, breaks, and burns. They also examined the flint flake they had used for evidence of wear and tear. Although they had used their hands for most of the butchery, the raw birds required considerable use of the flint flake, which now had small half-moon scars on the edge. While the cuts used to remove meat from the raw birds did not leave traces on the bones, the cuts aimed at tendons left marks similar to those on birds found at archaeological sites.

The bones from the roasted birds were more brittle: some had shattered and couldn’t be recovered. Nearly all of them had brown or black burns consistent with controlled exposure to heat. Black stains inside some bones suggested that the contents of the inner cavity had also burned. This evidence sheds light not just on how Neanderthal food preparation could have worked, but also how visible that preparation might be in the archaeological record. Although roasting makes it easier to access meat, the increased fragility of the bones means the leftovers might not be found by archaeologists.

However, the scientists cautioned that this research should be expanded to gain a fuller understanding of Neanderthal diets. Future studies should include more species of small prey, as well as processing birds for non-food products, like talons or feathers.

“The sample size is relatively small, consisting of only five bird specimens, which may not fully represent the diversity of bird species that Neanderthals might have used,” noted Nabais. “Secondly, the experimental conditions, although carefully controlled, cannot completely replicate the exact environmental and cultural contexts of Neanderthal life. Further research with larger samples, varied species, and more diverse experimental conditions is necessary to expand upon these results.”


Usewear on the flake used for butchery. Image by Dr Marina Igreja.

Credit

Dr Marina Igreja.

Bones recovered from the birds. Image by Dr Mariana Nabais.

Credit

Dr Mariana Nabais.

Rare archaeological site reveals ‘surprising’ Neanderthal behaviour at Pyrenees foothills




Australian National University
) A glimpse into an excavation day at Abric Pizarro. 

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ANU archaeologist Dr Sofia Samper Carro says the insights found at Abric Pizarro challenge widespread beliefs that Neanderthals only hunted large animals. 

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Credit: Photo: Sofia Samper Carro





An unchartered area in the foothills of the Southern Pyrenees in Spain is providing insights into a poorly known period of Neanderthal history, offering clues that could help archaeologists uncover the mystery of their downfall, according to new research from The Australian National University (ANU).
 
Abric Pizarro is one of only a few sites worldwide dating from 100,000 to 65,000 years ago during a period called MIS 4. The researchers have gathered hundreds of thousands of artefacts, including stone tools, animal bones and other evidence, providing significant data about the Neanderthal way of life during that time -- largely unknown in human history until now.

The findings reveal Neanderthals were able to adapt to their environment, challenging the archaic humans’ reputation as slow-footed cavemen and shedding light on their survival and hunting skills.

Lead author and ANU archaeologist, Dr Sofia Samper Carro, said that the findings show that Neanderthals knew the best ways to exploit the area and territory and were resilient through harsh climate conditions.

“Our surprising findings at Abric Pizarro show how adaptable Neanderthals were. The animal bones we have recovered indicate that they were successfully exploiting the surrounding fauna, hunting red deer, horses and bison, but also eating freshwater turtles and rabbits, which imply a degree of planning rarely considered for Neanderthals,” she said.

According to the researchers, these new insights challenge widespread beliefs that Neanderthals only hunted large animals, such as horses and rhinoceros.

“Through the bones that we are finding, which display cut marks, we have direct proof that Neanderthals were capable of hunting small animals,” Dr Samper Carro said.

“The bones on this site are very well preserved, and we can see marks of how Neanderthals processed and butchered these animals.

“Our analysis of the stone artefacts also demonstrates variability in the type of tools produced, indicating Neanderthals’ capability to exploit the available resources in the area.”

Shedding light on this crucial transitional period helps archaeologists edge closer to solving a mystery that has plagued researchers for decades: what drove the Neanderthals to extinction?

According to the researchers, finding sites like Abric Pizarro, from this specific and not well-recorded period, gives information about how Neanderthals lived when modern humans were not in the area yet and shows that they were thriving.

“The unique site at Abric Pizarro gives a glimpse of Neanderthal behaviour in a landscape they had been roaming for hundreds of thousands of years,” Dr Samper Carro said.

“Neanderthals disappeared around 40,000 years ago. Suddenly, we modern humans appear in this region of the Pyrenees, and the Neanderthals disappear. But before that, Neanderthals had been living in Europe for almost 300,000 years.

“They clearly knew what they were doing. They knew the area and how to survive for a long time.

“This is one of the most interesting things about this site, to have this unique information about when Neanderthals were alone and living in harsh conditions and how they thrived before modern humans appeared.”

Thanks to modern excavation techniques, Abric Pizarro and other nearby Neanderthal sites provide fine-grain data to understand Neanderthal behaviour.

“We 3D plot every single remain found larger than one to two centimetres. This makes our work slow, and we have been excavating some of these sites for over 20 years, but it turns into a uniquely precise recording of the sites,” Dr Samper Carro said.

“We are interested in how the different data relates to each other, from stone tools to bones and hearths. This more thorough excavation gives archaeologists information on how Neanderthals lived and how long they were in an area.

“It’s not only the individual materials that give us clues, but also where exactly they are found in relation to other materials on the site that helps us understand how and when Neanderthals were visiting these sites. Were they settled there or just passing through?”

The research team also included scientists from the Autonomous University of Barcelona (CEPAP-UAB). Research in the Catalan Pre-Pyrenees is supported by The Spanish Ministry of Science and Innovation and the Culture Department of the Catalan Government.

The research is published in the Journal of Archaeological Science.

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