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)2026-06-25T15:05:21Z
NEW YORK (AP) — Humans and data-gtm-enhancement-style="LinkEnhancementA" href="https://apnews.com/article/extinct-great-apes-china-8b801514b7e58d08c54c0bbcfbc2f27f">great apes have been data-gtm-enhancement-style="LinkEnhancementA" href="https://apnews.com/article/laughter-health-benefits-1821b672f574a445e2fa9763452979c9">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 data-gtm-enhancement-style="LinkEnhancementA" href="[youtube]https://www.youtube.com/watch?v=CtAlb8Loc1c[/youtube]" target="_blank" rel="noopener">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.
It turns out that the chuckles of humans and great apes follow similar rhythms, with regular timing between their laughs, a uniting thread that likely reflects their ties to a common ancestor, researchers said.
“In a way, we are very similar to other great apes because we’ve been laughing in a similar way for 15 million years,” said study author Chiara De Gregorio, a primatologist at the University of Warwick in England.
Laughter communicates a data-gtm-enhancement-style="LinkEnhancementA" href="https://apnews.com/video/climate-doom-and-gloom-try-laughing-instead-activists-embrace-joy-in-the-fight-to-save-earth-77a9d42743a744f8ac6a9ed5f8bd7a92">playful, happy feeling without using words. Many animals can laugh too, but the giggles don’t follow human patterns as closely. When researchers tickle rats, for example, they respond with ultrasonic squeaks.
Scientists trying to uncover how laughter evolved have picked apart animals’ facial expressions, but less work has been done on how laughs sound. And compared with apes, human laughter has become faster and more complex. For one, our laughs sound different based on context — from a polite chuckle among colleagues to a full-bodied guffaw with close friends.
“We are like the masters of laughter, I would say,” said De Gregorio, whose findings were published Thursday in the journal Communications Biology.
These giggles evolved to best suit animals’ different social lives, said Brittany Florkiewicz, who studies animal communication at Lyon College and had no role in the new research. She said the study’s findings make sense, and point to a need for more investigation.
Florkiewicz said she’d like to hear comparable recordings of other animals with playful facial expressions, like dogs, horses and cats. That could tell us more about how laughter evolved, so we can “understand what makes us uniquely human, but also what is similar between humans and other animals.”
Studying the origins of laughter may seem corny, but it’s one aspect of human communication that can help us understand others — including how we learned to speak. Because sounds don’t fossilize, scientists are using the evidence we do have to trace things back, one chuckle at a time.
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The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Department of Science Education and the Robert Wood Johnson Foundation. The AP is solely responsible for all content.
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ADITHI RAMAKRISHNAN Ramakrishnan is a science reporter for The Associated Press, based in New York. She covers research and new developments related to space, early human history and more.
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Get a load of this: Humans and great apes share similar giggles
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April 15, 2025, 08:05:20 PM