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  "path": "/2026/03/13/howler-monkeys-ate-leaves-13-million-years-ago/",
  "publishedAt": "2026-03-13T18:41:00.000Z",
  "site": "https://hub.jhu.edu",
  "textContent": "An extinct relative of the howler monkey may have been the first leaf-eating primate in South and Central America",
  "title": "Howler monkeys began eating leaves 13 million years ago, changing primate history"
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