
Ancient DNA from Neolithic remains shows that incoming farming women from prehistoric wetlands often married local hunter-gatherer men, producing mixed ancestry across Europe and shaping the population that migrated into Britain. The new analysis of ancient teeth offers physical, non-genetic evidence that intimate, often sex-biased unions have left persistent biological traces, reinforcing how mobility and social relationships drove major demographic change. A large-scale genomic study of 15,836 ancient West Eurasians further shows that such admixture and migration were frequently followed by sustained directional selection.
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