Anthropology | Science News



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stone tools

TOOLING DOWN  By around 320,000 years ago in East Africa, Homo sapiens or a close relative had shifted from making large chopping implements (left) to fashioning spearpoints and other small tools (right).

TATT MAN  Infrared imaging revealed that smudges on the upper-right arm of a naturally mummified Egyptian man are actually tattoos of a wild bull and a Barbary sheep. These oldest known picture tattoos date from at least 5,000 years ago.

ring-tailed lemurs

SNOOZE TIME  Humans get much less sleep than expected for a primate  with our biological and lifestyle characteristics, a study finds. Most other studied primates, including ring-tailed lemurs like these, sleep about as much on average as researchers estimated they should.

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