Friday, October 21, 2022

As Close to Primal Humans as Distant Cousins


"It makes them much more human, being able to actually show this. It brings them alive in some ways and allows me to think about them in a much more complex way."
"[These people come alive and] almost get faces, which is awesome for me [when, as a paleoanthropologist he has unearthed evidence of a small group of Neanderthals hunting ibex and bison]."
"If  you dressed up a Neanderthal in modern clothes and put him on the subway you might think he's kind of an ugly guy, but you would recognize him as just like us."
Bence Viola, paleoanthropologist, University of Toronto
A reconstruction of a Neanderthal father and his daughter is seen in this undated handout image
A reconstruction of a Neanderthal father and his daughter is seen in this undated handout photo provided by the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany. Tom Bjorklund/Max Planck Institute for Evolutionary Anthropology/Handout via REUTERS

University of Toronto paleoanthropologist Bence Viola was in distinguished company, along with his colleague Svante Paabo, winner of the 2022 Nobel Prize in Physiology or Medicine for discoveries on the genomes of extinct hominins particularly Neanderthals, and human evolution. Alongside post-doctoral researcher Laurits Skov at the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany when they joined their academic archaeological skills in the Altai Mountains of Siberia.

They discovered a 'milk tooth' of a young girl and the vertebrae and ulna of her father, in a cave . DNA linked the two, mitochondrial DNA difference indicating the likelihood they were father and daughter whose remains were over 50,000 years old. Remains from other Neanderthals of the 13 specimens the research team focused on, indicated that the males were closely genetically related, more so than the females.Two males were found to be close maternal cousins of the father, linked by a grandmother.
Reconstruction of a Neanderthal (Homo neanderthalensis)

Neanderthals might have lived in small groups, with females regularly arriving and leaving  .Credit: S. Plailly/E. Daynes/SPL

The research team drew the conclusion that young Neanderthal women and not young men were those who migrated between different social groups numbering, they felt, two dozen individuals. The team studied 13 individual Neanderthals making the group the largest studied ever of a Neanderthal population. It is viewed as unsurprising that people who lived together and died in close proximity would have been related.

The adolescent Neanderthal girl whose milk tooth identified her, it was surmised, accompanied her father on a hunting trip, and the cave where their remains were discovered was most likely a short-term hunting camp. The small group would have butchered their game stalked in the hills and passing by in herds through a narrow valley below.

Neanderthal remains were first discovered and identified 200 years ago. More is now known about Neanderthals, revealed over the past 20 years, due in part to Svante Paabo's genomic research. Where once people thought of Neanderthals as brutes more akin to wild animals than the animals that were humans, it is now known that they were sufficiently advanced to produce art, music and language, as well as fashioning rude tools. The patterns of their social lives appear now to be similar to that of homo sapiens.

The 13 Neanderthal remains being studied came mostly from Chagyrskaya Cave, with two from the Okladnikov Cave, both considered to have been short-term hunting camps. Located in southern Siberia's Altai Mountains, the sites are as far east as Neanderthals are known to have located themselves.  Evidence from a major Neanderthal site, the Vindija Cave in Croatia, appears to point out that Neanderthal populations in Europe may have been different.
"Our findings raise questions as to whether the characteristics of the Altai communities are related to their isolated geographical location at the easternmost extremity of the known range of Neanderthals ... or whether they are characteristic of Neanderthal communities more broadly."
Research study, published in Nature
Chagyrskaya Cave, located in the Altai Mountains of southern Siberia in Russia
Chagyrskaya Cave, located in the Altai Mountains of southern Siberia in Russia, s seen in this undated handout photo provided by the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany. Scientists have sequenced the genomes of 11 Neanderthal individuals based on remains found in the cave. Bence Viola/Handout via REUTERS

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