
A recent study published in Science reveals that interbreeding between Neanderthal men and anatomically modern human women occurred over several thousand years before Neanderthals vanished around 45,000 years ago. Researchers from the University of Pennsylvania found that gene flow predominantly involved Neanderthal males and human females, explaining the low presence of Neanderthal DNA on the human X chromosome. While the biological incompatibility theory was challenged, some experts suggest these interactions may have been competitive or aggressive, though the exact nature remains uncertain.
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