Back in 1933, a Chinaman working for the Japanese invaders dug up a funny looking skull. Recalling the excitement over the recent Peking Man findings, he didn’t want to have his find confiscated by the Japanese occupiers, so he buried the old skull in a well. After the the Japanese were defeated, he didn’t feel like talking about his past working for the Japs. So, he left the skull at the bottom of the well and only told his descendants. Finally, the family dug it up in 2018 and gave it to a Chinese university.
They dated it to at least 146,000 years ago. They found enough ancient DNA to determine it was another example of a Denisovan, a mystery human species or race or whatever first discovered in 2011 from a single pinkie finger. Most people east of about the Urals have some DNA descended from Denisovans, with New Guineans getting up to about 5% Denisovan ancestry.
Now, we finally had a Denisovan skull: So here’s the first artist's conception of a Denisovan:
So, now we know: Denisovans looked like roadies with a mid-1970s English metal band heavily inspired by "Lord of the Rings," or a darker version of Welsh actor John Rhys-Davies playing Gimli.
Or maybe Derek Smalls:
This Denisovan had a brain about 7% larger than the average modern human. Were they smarter? If so, how come we aren’t 95% Denisovan.
From the New York Times science section:
… John Hawks, a paleoanthropologist at the University of Wisconsin-Madison, said the studies delivered a definitive answer to the question of the Harbin skull’s identity. “Mystery solved,” he said.
The DNA in the Harbin plaque also allowed Dr. Fu and her colleagues to place the Harbin skull on a Denisovan family tree. Modern humans share a common ancestor with both Neanderthals and Denisovans that lived in Africa about 600,000 years ago. The forerunners of Neanderthals and Denisovans migrated out of Africa and then split into the two lineages about 400,000 years ago.
Neanderthals spread from the Middle East to Western Europe, while Denisovans spread from Siberia eastward. Over thousands of generations, the Denisovans split into new branches.
Dr. Fu and her colleagues found that the Harbin skull belonged to the same branch as the oldest Denisovans found in the Denisova cave, whose fossils dated back about 200,000 years. A separate branch gave rise to the 66,000-year-old Denisovan girl whose pinkie bone was found there.
Given all the genetic diversity documented in Denisovan DNA, Dr. Fu can’t say whether the Harbin skull reveals a typical Denisovan face. “For now, it’s just one case,” she said. …
And the usual lumper-splitter debates have broken out:
For now, the discovery leaves scientists divided about what to call the lineage that includes the Harbin skull and the girl from Denisova. “Homo longi is the appropriate species name for this group,” said Chris Stringer, a paleoanthropologist at the Natural History Museum in London who was not involved in the study.
But Dr. Hawks still calls them Denisovans. The fact that they could interbreed with our own ancestors, he argues, makes them a lineage in our own species, along with Neanderthals.
“I’m pretty confident saying these are all Homo sapiens,” he said.
Weirdly, few true believers in the Race Does Not Exist conventional wisdom use the same talking points to argue that Species Does Not Exist.
By the way, although most of our photos of Charles Darwin depict him as an long-bearded sage in advanced age, in this photo from middle age, Chuck looks like Keith Richards’ bruiser bodyguard.
DNA from 146,000 years ago is surprising outside of Siberia. Perhaps one day the Homo erectus genome will be sequenced.
In the 12-15 years since it was discovered that Europeans have 2-4% neanderthal DNA, and that Asians have 2-5% Denisovan, there have been so many follow up studies to try and determine what benefit (or costs) the modern humans acquired from that admixture.
In the 5 years since it was announced that West Africans have between 2% and 19% of their DNA from a species that is separated from the rest of humanity by as much as 1 million years there has been hardly any follow up at all.*
If you google 'West African Ghost Lineage' you get a bunch of mainstream media news articles from the week the study was published. That was in February 2020. (I suppose if the study had been finalized 6 months later it might never have been published at all.)
It's a shame that politics prevents further investigation into this fascinating theory.
*There was one follow up that claimed to have debunked the original paper, but John Hawks thinks it still holds up.
Neanderthals also had a larger brain but it was the visual area that was more developed so they probably were not smarter. Despite Neanderthal better visual processing, stronger muscles and thicker bones the Cro-Magnon invading Ice Age Europe were saying “no matter what, we have the bow and they do not”
Artistic depictions of archaic men don't look that weird because there are many modern human men who like Darwin have a strong brow ridge while the lack of chin is hidden by the beard. Archaic woman and children look weirder because they also have a large brow ridge which we associate with men.