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  "path": "/article/how-the-dutch-fish-doorbell-helps-migrating-fish-each-spring/",
  "publishedAt": "2026-03-02T16:40:00.000Z",
  "site": "https://www.scientificamerican.com",
  "textContent": "A Dutch lock is closed for the spring, and its employees want you to tell them when migrating fish come knocking by ringing a digital doorbell",
  "title": "How the Dutch Fish Doorbell helps migrating fish each spring"
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