You are never too old to play — a maxim that even adult chimpanzees seem to follow.
Young chimpanzees are already known to get many benefits from playing. But it seems to also be more important among adult chimps than previously thought. A multiyear study of dozens of adult chimpanzees in Ivory Coast suggests that play helps adults reduce tension and boost cooperation among individuals, researchers report November 21 in Current Biology.
“Every time we think we have something that’s like, ‘This is the thing that makes humans different,’ eventually we knock it down,” says Kris Sabbi, a primatologist at Harvard University who was not involved in the study.
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