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Neanderthal DNA could influence your skin tone, hair color, sleep patterns, mood and even smoking behavior, a new study finds.
The finding sheds light on the role Neanderthal genetic variants play in modern human biology in addition to disease, the researchers said.
Neanderthals, the closest extinct relatives of modern humans, died off in Europe about 40,000 years ago. Research over the past decade has revealed that Neanderthals interbred with the ancestors of modern humans who migrated out of Africa. Currently, scientists find that the genomes of modern human groups that originated outside Africa hold between 1.8 and 2.6 percent Neanderthal DNA. [In Photos: Neanderthal Burials Uncovered]
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