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  "path": "/story/389973/fish-seem-to-nap-like-humans.html",
  "publishedAt": "2026-05-29T11:16:00.000Z",
  "site": "https://www.newser.com",
  "textContent": "Fish may lack eyelids, but when it comes to sleep, a new study suggests they're a lot more like humans than you might guess. The study in Nature Communications finds zebrafish cycle through four distinct sleep \"substates\" that parallel human sleep stages—right down to something resembling naps, reports the...",
  "title": "Fish Seem to Nap Like Humans"
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