Get a load of this: Humans and great apes share similar giggles
Two chimps walk together at Chimp Haven in Keithville, La., Feb. 19, 2013. (AP Photo/Gerald Herbert, File)
NEW YORK (AP) — Humans and great apes have been giggling in similar ways since branching off the evolutionary tree, a new study suggests.
How do we know this? Researchers tickled 13 captive apes — including gorillas, orangutans, chimpanzees and bonobos — and recorded the results. The new research reexamined those decades-old recordings and compared them with the newly captured giggles of four young children while they were being tickled and playing at home.
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