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  "path": "/podcast/episode/why-do-we-have-chins-researchers-may-finally-know/",
  "publishedAt": "2026-04-01T10:00:00.000Z",
  "site": "https://www.scientificamerican.com",
  "textContent": "Humans are the only species that has chins. A recent study sheds light on how that came to be and why evolution doesn’t always follow the rules",
  "title": "Why do we have chins? Researchers may finally know"
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