Posted on 09/27/2020 4:16:50 PM PDT by BenLurkin
A growing number of ancient DNA studies on Neanderthals, Denisovans and Homo sapiens suggest intertwined evolutionary and population histories, including several admixture events between early modern and archaic humans.
However, ancient nuclear and mtDNA sequences revealed phylogenetic discrepancies between the three groups that are hard to explain.
For example, autosomal genomes show that Neanderthals and Denisovans are sister groups that split from modern humans more than 550,000 years ago.
However, all but the earliest Neanderthal mtDNA samples are far more similar to those of modern humans than to those from Denisovans.
These studies suggest that Neanderthals originally carried a Denisovan-like mtDNA, which was later replaced through early admixture with early modern humans, likely between 350,000 and 150,000 years ago.
While genomic data for the paternally inherited Y chromosome would help resolve puzzling gene flows, virtually none of the male Neanderthal and Denisovan remains studied to date contain well-preserved Y chromosome DNA.
The researchers found that, like maternally inherited mtDNA, modern human and Neanderthal Y chromosomes were more related to each other than to the Denisovan Y, supporting the suggestion that interbreeding between early humans and Neanderthals and subsequent selection led to the total replacement of more ancient Denisovan-like genetic material in late Neanderthals.
(Excerpt) Read more at sci-news.com ...
homo sapiens split was 800kyago.
denisovians and neanderthals then split 500kyago,
but both interbred with humans;
neanderthals several times with offshoots
from africa.
denisovians went far west.
Ugh, what has been seen cannot be unseen!
I used to joke that an alternative interrogation technique would be to make terrorists watch her an a Henry Waxman reenact the beach scene from From Here To Eternity.
Thanks BenLurkin.
KEYWORDS: neandertal; neandertals; neanderthal; neanderthalsThe Neandertal Enigma"Frayer's own reading of the record reveals a number of overlooked traits that clearly and specifically link the Neandertals to the Cro-Magnons. One such trait is the shape of the opening of the nerve canal in the lower jaw, a spot where dentists often give a pain-blocking injection. In many Neandertal, the upper portion of the opening is covered by a broad bony ridge, a curious feature also carried by a significant number of Cro-Magnons. But none of the alleged 'ancestors of us all' fossils from Africa have it, and it is extremely rare in modern people outside Europe." [pp 126-127]
by James Shreeve
in local libraries
Well, that got things moist.
Denisovians went far EAST!!!!
p
For example, autosomal genomes show that Neanderthals and Denisovans are sister groups that split from modern humans more than 550,000 years ago.
—
Modern Homo sapiens did not descend from these groups but they descended from us - totally at odds with the “traditional” meme. Sounds like the Denisovans descended from Homo heidelbergensis.
“I used to joke that an alternative interrogation technique would be to make terrorists watch her an a Henry Waxman reenact the beach scene from From Here To Eternity.”
That is unfair. No one could stand up to that interrogation.
Dear God, #3 !!! I may never be able to fall asleep again. :-)
That's from puking.
ping
Thanks made the day worth it just to see her. Neanderthal Pinup
Need to add new keywords “my cousin” eh?
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