{
  "id": 563621,
  "title": "Historical DNA reveals largetooth sawfish have lost much of their genetic diversity",
  "url": "https://urgent.news/2026/08/11/historical-dna-reveals-largetooth-sawfish-have-lost-much-of-their",
  "topic": "science",
  "section": "Science",
  "published": "2026-08-11T12:00:04.000Z",
  "source": {
    "name": "Phys.org",
    "slug": "phys-org",
    "url": "https://phys.org/news/2026-08-historical-dna-reveals-largetooth-sawfish.html"
  },
  "original_language": "en",
  "account": null,
  "summary": "The genetic diversity of the largetooth sawfish (Pristis pristis), a critically endangered ray, has plummeted over the past century and a half, according to a study published in the Proceedings of the Royal Society B: Biological Sciences. The species once lived in tropical waters worldwide but has disappeared from much of its former range.",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "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."
}