Humans
Gene study shows human skin tone has varied for 900,000 years
An analysis of genetic variation and skin pigmentation suggests that some particularly dark skin tones evolved relatively recently from paler genetic variants
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An analysis of genetic variation and skin pigmentation suggests that some particularly dark skin tones evolved relatively recently from paler genetic variants
The systems designed to stop potentially risky research being published and used to make weapons of terror have 鈥渕ultiple shortcomings鈥�, warns US report