{
  "id": 6441081,
  "title": "The 'costly son' hypothesis: Why bigger sons may make births riskier across species",
  "url": "https://urgent.news/2026/09/09/the-costly-son-hypothesis-why-bigger-sons-may-make-births-riskier",
  "topic": "science",
  "section": "Science",
  "published": "2026-09-09T16:27:09.000Z",
  "source": {
    "name": "Phys.org",
    "slug": "phys-org",
    "url": "https://phys.org/news/2026-09-son-hypothesis-bigger-sons-births.html"
  },
  "original_language": "en",
  "account": null,
  "summary": "A new comparative review, published in The Anatomical Record, examines factors that may lead to birth complications among humans and other mammals. The study suggests that fetal sex may play an important role in risky births in humans and several other species.",
  "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."
}