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Sex with Neanderthals made us stronger
Mating with Neanderthals and another group of extinct hominids, Denisovans, strengthened the human immune system and left behind evidence in the DNA of people today, according new research.
Genetic analysis shows that now-extinct archaic humans contributed to the DNA of all living people. In Europe and Asia, Neanderthals and Denisovans interbred with modern humans, some of whom brought the newly acquired genetic changes back to Africa.
Full story at Discovery News.
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