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Humans are known to invent private hand gestures. Chimps in the wild do, too, a new study suggests. By Brandon Keim Parents and their children, or people who know each other well, often share some ...

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A study out this week shows that peeing can sometimes be contagious among chimpanzees, too. Scientists at Kyoto University in Japan led the research, which was published Monday in the journal ...

By Annie Roth Ena Onishi, a doctoral student at Kyoto University, has spent over 600 hours watching chimpanzees urinating. She has a good reason for all that peeping, though. She is part of a team ...

Yawning isn’t the only bodily function that’s contagious. Japanese scientists have discovered that chimpanzees are more likely to urinate when they see other primates going No. 1 as well ...

Hate waiting in line for the bathroom? Chimpanzees have a social solution: Go all at once. A new study shows that peeing is contagious in chimpanzees, making it “the first study to investigate ...

A new paper published in Current Biology suggests a novel twist on an old saying: Instead of "monkey see, monkey do," the paper proposes "chimp see, chimp pee." Well, not in so many words. But the ...

Chimpanzees living at the Kumamoto Sanctuary in Japan are also more likely to relieve themselves when others are doing so nearby, and the behavior seems to be hierarchical, "flowing down" from ...

The study in 20 captive chimpanzees living at the Kumamoto Sanctuary in Japan shows that, when one chimp pees, others are more likely to follow. “In humans, urinating together can be seen as a ...

For chimpanzees, the need to pee appears to be contagious. A study published January 20 in the journal Current Biology finds that when one chimpanzee urinates, the others in a group are more ...

Research has shown that some behaviors, like yawning, can be contagious. Now, a new study published in Current Biology has uncovered a peculiar social behavior in chimpanzees that experts call ...