{
  "id": 5655901,
  "title": "Scientists overturn a theory about this shark’s strange head",
  "url": "https://urgent.news/2026/09/04/scientists-overturn-a-theory-about-this-sharks-strange-head",
  "topic": "science",
  "section": "Science",
  "published": "2026-09-04T22:24:32.000Z",
  "source": {
    "name": "ScienceDaily",
    "slug": "sciencedaily",
    "url": "https://www.sciencedaily.com/releases/2026/09/260902234508.htm"
  },
  "original_language": "en",
  "account": "A recent study of bonnethead sharks in Florida is challenging a long-standing theory about the development of their distinct head shapes. Researchers found that both males and females experience a shift in head shape as they mature, with females exhibiting a more pronounced change. Earlier research suggested that males developed their more pointed snouts when they reached sexual maturity. However, this new investigation, the first detailed study of both head shape and diet in bonnethead sharks, found no evidence to support this claim. Instead, the change in head shape was observed in both genders, with females showing a greater degree of rounding. The study, led by Kathy Liu from the University of Miami Rosenstiel School, also examined the dietary habits of the sharks and found that even within the same bay, males and females occupied distinct food webs and experienced dietary changes as they grew. The researchers caution that while the differences in head shape are not related to diet, the reason behind the development of these sex-specific head shapes remains unclear. Future research may focus on swimming performance and embryonic development to further explore this mystery. The findings, published in the journal Integrative Organismal Biology, could have implications for conservation efforts by helping to identify population differences that may be important for region-specific management strategies.",
  "summary": "Scientists have overturned a leading explanation for why male and female bonnethead sharks have differently shaped heads. Instead of males developing a pointed snout at maturity, both sexes actually begin with more pointed heads that become rounder with age, particularly in females.",
  "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."
}