Maasai Man with Goat Herd, Tanzania (IMAGE)

American Association for the Advancement of Science (AAAS)

Maasai Man with Goat Herd, Tanzania

Caption

A Maasai man with his goat herd in Tanzania. This man has a genetic adaptation to milk. Sarah Tishkoff et al. found several novel variants associated with lactose tolerance in East African pastoralists; these variants serve as examples of local adaptation.

Credit

[Credit: Alessia Ranciaro]

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