Apes and humans have been sharing a laugh for 15 million years (opens in new tab)

Covers 3 stories including Rhythm and timing in laughter reveal that human vocal plasticity falls on a hominid continuum - Communications Biology

Great apes may have been laughing with a similar rhythm to modern humans for at least 15 million years, a University of Warwick study reveals. The finding offers unexpected clues to how human speech evolved.

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