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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.
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]
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 ...
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 ...
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.
The total population of Neanderthals remained low, and interbreeding with modern humans tended toward a loss of Neanderthal genes over time. [19] They lacked effective long-distance networks. Despite this, there is evidence of regional cultures and regular communication between communities, [20] [21] possibly moving between caves seasonally. [22]
In a separate study, researchers tracked signs of Neanderthal in our genetic code over 50,000 years. They found Neanderthal genes related to immunity and metabolism that may have helped early humans survive and thrive outside of Africa. We still carry Neanderthals' legacy in our DNA.
Scientists have known since the first Neanderthal genome was sequenced in 2010 that early humans interbred with Neanderthals, ... “Genetic data from this crucial period in our evolution are very ...