New DNA study shows Neanderthal genes crucial for survival of early modern humans
bbc.com —
New DNA analysis reveals that modern humans faced multiple extinctions after leaving Africa. Only those who interbred with Neanderthals survived and thrived, suggesting Neanderthal genes were vital for adapting to new diseases. Research indicates that interbreeding occurred around 48,000 years ago, after which modern humans expanded globally. Earlier populations that did not interbreed did not survive, highlighting the importance of genetic mixing. The study also shifts the focus on Neanderthal extinction, suggesting environmental factors played a significant role rather than competition with humans. Neanderthals had lower genetic diversity and numbers, making them more vulnerable during climate changes.