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Two new studies have helped narrow down the time during which Neanderthals interbred with modern humans to a period starting about 50,500 years ago and lasting over seven millennia.. One of the ...
As shown in an interbreeding model produced by Neves and Serva (2012), the Neanderthal admixture in modern humans may have been caused by a very low rate of interbreeding between modern humans and Neanderthals, with the exchange of one pair of individuals between the two populations in about every 77 generations. [42]
The Neanderthal DNA found in modern human genomes has long raised questions about ancient interbreeding. New studies offer a timeline of when that occurred and when ancient humans left Africa.
Those first modern humans that had interbred with Neanderthals and lived alongside them died out completely in Europe 40,000 years ago - but not before their offspring had spread further out into ...
Research since 2010 refined the picture of interbreeding between Neanderthals, Denisovans, and anatomically modern humans. Interbreeding appears asymmetrically among the ancestors of modern-day humans, and this may explain differing frequencies of Neanderthal-specific DNA in the genomes of modern humans.
Neanderthals and Denisovans are more closely related to each other than they are to modern humans, meaning the Neanderthal/Denisovan split occurred after their split with modern humans. [ 14 ] [ 47 ] [ 93 ] [ 113 ] Assuming a mutation rate of 1 × 10 −9 or 0.5 × 10 −9 per base pair (bp) per year, the Neanderthal/Denisovan split occurred ...
Modern human DNA found in Neanderthal genomes offers clues to how our archaic ancestors disappeared, ... encountered and interbred with Neanderthals in three waves: One about 200,000 to 250,000 ...
Neanderthals became extinct around 40,000 years ago. Hypotheses on the causes of the extinction include violence, transmission of diseases from modern humans which Neanderthals had no immunity to, competitive replacement, extinction by interbreeding with early modern human populations, natural catastrophes, climate change and inbreeding depression.