{
  "id": 17855403,
  "title": "Traces of ancient blood found in 115 million-year-old dinosaur fossil, new study claims",
  "url": "https://urgent.news/2026/11/02/traces-of-ancient-blood-found-in-115-million-year-old-dinosaur-fossil",
  "topic": "science",
  "section": "Science",
  "published": "2026-11-02T21:01:07.000Z",
  "source": {
    "name": "Live Science",
    "slug": "live-science",
    "url": "https://www.livescience.com/animals/dinosaurs/traces-of-ancient-blood-found-in-115-million-year-old-dinosaur-fossil-new-study-claims"
  },
  "original_language": "en",
  "account": "Microscopic structures resembling red blood cells and chemical signatures of heme have been discovered in the fossilized bones of a 115 million-year-old dinosaur from Brazil, according to a new study. The findings, published in the journal PNAS, suggest this is the oldest evidence of blood-related material in a dinosaur fossil. However, some experts remain skeptical about the team's conclusions, arguing that the shape of the structures does not match those of reptilian red blood cells.",
  "summary": "Chemical signatures found in a Brazilian dinosaur bone may be preserved red blood cells, a new study suggests, but not all experts agree.",
  "key_points": [
    "Microscopic red blood cell structures found in 115 million-year-old dinosaur fossil",
    "Heme chemical signatures detected in fossilized bones",
    "Study published in PNAS, but some experts skeptical of conclusions"
  ],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 2,
    "also_reported_by": [
      {
        "outlet": "The Conversation AU",
        "title": "Traces of dinosaur blood found in world-first discovery",
        "url": "https://urgent.news/2026/11/02/traces-of-dinosaur-blood-found-in-world-first-discovery",
        "published": "2026-11-02T19:59:26.000Z"
      }
    ]
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}