Tibetan DNA study reveals human evolution

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Ethnic Tibetans' ability to thrive in high altitudes with low oxygen is the fastest genetic change ever observed in humans, according to a study published Friday in the journal Science.

Researchers at the University of California-Berkeley said their comparison of the genomes of ethnic Tibetan and Han Chinese could help scientists understand how the body deals with decreased oxygen and diseases associated with oxygen deprivation in the womb, according to a news release on the university's website....

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