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Ancient DNA Reveals Unexpected Neanderthal Influence on Modern Humans

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Discovery

Curated by Surfaced Editorial·History·2 min read
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A groundbreaking study published in *Nature* in 2010 by Svante Pääbo's team at the Max Planck Institute for Evolutionary Anthropology unveiled the complete genome of a Neanderthal. This analysis revealed that modern humans of non-African descent carry between 1% and 4% Neanderthal DNA. This suggests interbreeding occurred between Homo sapiens and Neanderthals after our ancestors migrated out of Africa, a surprising revelation given the long-held view of distinct evolutionary paths.

Why It’s Fascinating

The discovery that modern humans outside of Africa harbor Neanderthal DNA fundamentally reshaped our understanding of human evolution. It overturned the prevailing model of complete replacement, suggesting a more complex and collaborative history between our species and our extinct hominin relatives. This genetic legacy may influence a range of traits, from immune system responses to susceptibility to certain diseases, though much of this is still under investigation. The finding raises profound questions about what it means to be 'human' and how our evolutionary past continues to manifest in our present biology. The implications extend to anthropology and our understanding of interspecies interaction in deep time.

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