{
  "$type": "site.standard.document",
  "bskyPostRef": {
    "cid": "bafyreigprmr52zjh5uqxk4bjh7pl2odpegeufimmo4pjngsalqperaxlqm",
    "uri": "at://did:plc:skay7lskjqh4alxysohku377/app.bsky.feed.post/3mmwmw4pwmu42"
  },
  "coverImage": {
    "$type": "blob",
    "ref": {
      "$link": "bafkreic2ydamnxu4h7vu6oky5hyljtxddxsbdxcpcobutoczpnzii67tbu"
    },
    "mimeType": "image/png",
    "size": 1975830
  },
  "path": "/environment/pigeon-liver-magnetic-field-navigate/",
  "publishedAt": "2026-05-28T18:00:00.000Z",
  "site": "https://www.popsci.com",
  "tags": [
    "Environment",
    "Animals",
    "Biology",
    "Birds",
    "Science",
    "Wildlife",
    "Pigeons use their livers to sense Earth’s magnetic field",
    "Popular Science"
  ],
  "textContent": "Special immune cells may be one piece of their internal compass.\n\nThe post Pigeons use their livers to sense Earth’s magnetic field appeared first on Popular Science.",
  "title": "Pigeons use their livers to sense Earth’s magnetic field"
}