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Inverse | Why Babies Laugh Like Chimps, Not Like People | Inverse @inverse | Uploaded 5 years ago | Updated 2 hours ago
Why do babies laugh? Why do babies laughs sound different and strange and unique? Let's explore why babies laugh and why they sound different than adults.

While a sense of humor is a key component of being human, laughter isn’t a pastime of Homo sapiens alone. Other primates laugh, too, though their laughter differs from ours in a fundamental way. The weird thing is, as scientists recently discovered, the laughter of human babies is a lot more similar to that of primates than that of adult people.

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At a meeting of the Canadian Acoustical Association in Victoria, Canada, on Monday, a team of phoneticians and psychologists presented evidence that the laughter of especially young babies is more analogous to that of nonhuman primates, such as chimps. Their conclusion hinges on a key aspect of baby laughter: When babies laugh, they both exhale and inhale. The laughter of adults, on the other hand, is primarily produced on the exhale.

read full article: inverse.com/article/50585-baby-laugher-primate-similarity

That exhalation has been thought to be the one way in which human laughter differs from that of primates. However, this new research — for now, only presented as a conference abstract — demonstrates that at the start of our lives we laugh like other primates. You can listen to the inhalation-exhalation of a baby’s laugh in the video above.

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