# Rhythm and timing in laughter reveal that human vocal plasticity falls on a hominid continuum

> **Newsylist Open Intelligence Dossier** · First detected: 2026-06-25 20:00 UTC · Category: Science · Sources: 3 · Current Velocity: 1.3

## Multi-Source Evidence Table
| Source Outlet | Headline | Published (UTC) | Verification URL |
|---|---|---|---|
| Forbes | Scientists Tickled Gorillas And Found A 15-Million-Year-Old Clue To How Humans Learned Speech | 2026-06-25 16:24 | [Source Link](https://news.google.com/rss/articles/CBMi5gFBVV95cUxNMUxDeEZzb1hrMm1mNVRPd056N05aTDlMWFFRWWltWWJlVHpqNmprQU1hOGp0YjlYdE5zRGtpYlFMeElQV1RNRkxieGUtN3Y3VEszb3lTSmJMTjNFVUJTVmJWdUZVTlk0WHR0WlVIVlZ6TjZyTFhsdjB3NktEVVZLZnRmN3FjVFdpaFBCX1h5aDZQNElYLWFxRFg3aUJhSmRGWi1ITms0elZJc3ZsLUNWZzVHQk94UFlVODF6M1NUOGRxeWg3T2FaeWRJYUtUWi1VeEhDM0QtRWhxWERqREpvWVhXVXN5Zw?oc=5) |
| National Geographic | What an ape’s laugh can teach us about human language | 2026-06-25 16:24 | [Source Link](https://news.google.com/rss/articles/CBMie0FVX3lxTE12X1gtcmNpVEUxWHIwTTZVcFNzLXo4bGJMSllhOTVVbUFsREU1cEsxUnZkTmlyWUJLb1NZaS0tNDUwcmhfNjFvbWF5NDVlc3hqVVdXSmluSkVYdHpPWXRWbWtCRG1FY1prZE5rZ2ZOM2NvTGN1Vl9sTUE0cw?oc=5) |
| Phys.org | Apes and humans have been sharing a laugh for 15 million years | 2026-06-25 16:24 | [Source Link](https://news.google.com/rss/articles/CBMibEFVX3lxTE9ua09BeTZXd3FvdjJINnV2VmJYSklCRHBGZG10ZDhialEyaE1aT2RaUHdUUS1QaklfMUhSVl9DUENuNXBVZGkzcG5pT0VIa0FUaTJhMksyWS1vVG5wUVdiQjdfUDFuS2hBaDRMcQ?oc=5) |

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*Canonical Source: https://www.newsylist.com/trend/2026-06-25/rhythm-and-timing-in-laughter-reveal-that-human-vocal-plasticity-falls-on-a*
*Synthesized by Newsylist Open Intelligence Engine under E-E-A-T journalistic standards.*