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Infants may laugh like some apes in their first months of life

As babies age, their laughter starts to sound more like that of human adults

Baby wearing yellow, laughing with head tilted upwards

Researchers scoured the internet for clips of laughing 3- to 18-month-olds and had experts and nonexperts listen for clues to laughter’s development in babies’ breaths.

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By Carolyn Wilke

- More than 2 years ago

Babies may laugh like some apes a few months after birth before transitioning to chuckling more like human adults, a new study finds.