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David Reich, an evolutionary geneticist at Harvard Medical School in Boston, said Denisovans interbred with an extinct population of archaic humans that lived in Asia, raising questions about this new species.
In sub-Saharan Africa, several African clawed frog species have interbred so successfully that at least seven new species with distinct genetic makeup have been created.
Based on this new data, modern humans probably interbred with Neandertals between about 50,000 and 60,000 years ago, the team estimates, rather than over a longer period extending further back in the Stone Age (SN: 11/3/12, p.
The find suggests that the two types of human interbred to produce hybrids with mixed features, the researchers claim.
During the interval between, it was likely that individuals from the two lineages interbred.
The patterns of Neandertal DNA found in the human genome suggest that ancient populations interbred at least twice across Europe and Asia, Vernot and Akey say.
One possible explanation is that modern humans interbred with Neanderthals mostly after the modern lineage began appearing outside Africa at least 100,000 years ago.
Genetic researchers at the University of Montreal seem to have confirmed that non-Africans interbred with Neanderthals thousands of years ago.
Neandertals, on the other hand, are generally thought to have been a separate species even if they occasionally interbred with Homo sapiens.
London, September 30 ( ANI ): Neanderthals may have lived side by side with early humans and possibly interbred with them, a new study has claimed.
These long-lost human cousins must have then interbred with modern humans sometime before the common ancestral lineage of the three hunter-gatherer groups separated about 30,000 to 70,000 years ago, Akey says.
Washington, Sept 8 (ANI): A new research has revealed that archaic humans, who lived somewhere in Africa during the last 20-60 thousand years, interbred with anatomically modern humans and transferred small amounts of genetic material to their offspring who are alive today,
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