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PHOTOGRAPH BY SEBASTIAN SCHÜTTE AND JOHANNA ECKERT, MPI FOR EVOLUTIONARY ANTHROPOLOGY
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It was a prank: Chimpanzees laugh while they play, but does that mean they also have a sense of humor? Well, at least some of them do. In a recent story exploring the minds of animals, writer Yudhijit Bhattacharjee shares how a researcher wearing a panther mask surprised a group of chimps. At first the chimps were angry, but when he revealed his familiar face, some of the chimps—the older chimps—laughed. (Pictured above, a chimp named Changa inspects a thermal imaging camera and registers, as in humans, a colder nose when stressed.)
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