{
  "$type": "site.standard.document",
  "bskyPostRef": {
    "cid": "bafyreifewucuswk5obidufhu7wwpxb432ogeqwsstdmk6nwy6clbhrqbmi",
    "uri": "at://did:plc:2gbt2dlwaqovtnmxkat3tyke/app.bsky.feed.post/3mhq6b6sszf32"
  },
  "coverImage": {
    "$type": "blob",
    "ref": {
      "$link": "bafkreigrgncryzrkoj442pqmg7sdltedl576cqsjhf6w22nddj4y36wrua"
    },
    "mimeType": "image/jpeg",
    "size": 120083
  },
  "path": "/articles/d41586-026-00802-7",
  "publishedAt": "2026-03-23T13:31:44.045Z",
  "site": "https://www.nature.com",
  "tags": [
    "doi:10.1038/d41586-026-00802-7"
  ],
  "textContent": "Nature, Published online: 23 March 2026; doi:10.1038/d41586-026-00802-7\n\nA 1981 publication showed how cooperators can prevail over defectors, laying the foundation for how the evolution of cooperation between unrelated individuals is studied.",
  "title": "Forty-five years of progress after a key paper about the evolution of cooperation",
  "updatedAt": "2026-03-23T00:00:00.000Z"
}