{
  "id": 19854138,
  "title": "Darwinian and Wallacean evolution both explain sexual dichromatism in avian iridescence.",
  "url": "https://urgent.news/2026/11/13/darwinian-and-wallacean-evolution-both-explain-sexual-dichromatism-in",
  "topic": "science",
  "section": "Science",
  "published": "2026-11-13T00:00:00.000Z",
  "source": {
    "name": "bioRxiv",
    "slug": "biorxiv",
    "url": "https://www.biorxiv.org/content/10.64898/2026.11.11.765350v1?rss=1"
  },
  "original_language": "en",
  "account": null,
  "summary": "One of the longest-standing arguments in evolutionary biology is that between Darwin and Wallace on the evolution of sexual dichromatism, and which sex changed colour over time. While Darwin argued that males became more colourful over time, Wallace argued that females became less colourful, and numerous studies have lent support to each hypothesis over time. Iridescent colouration provides a…",
  "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."
}