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- Rhythm and timing in laughter reveal that human vocal plasticity falls on a hominid continuum | Communications Biology Nature
- To Reveal the Rhythmic Roots of Laughter, Just Tickle an Ape The New York Times
- Scientists Tickled Gorillas And Found A 15-Million-Year-Old Clue To How Humans Learned Speech Forbes
- What an ape’s laugh can teach us about human language National Geographic
- Apes and humans have been sharing a laugh for 15 million years Phys.org
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