{
  "id": 28611,
  "title": "A minimal wake–vortex model explains formation flight of flapping birds",
  "url": "https://urgent.news/2026/07/21/a-minimal-wake-vortex-model-explains-formation-flight-of-flapping",
  "topic": "world",
  "section": "World",
  "published": "2026-07-21T07:00:00.000Z",
  "source": {
    "name": "PNAS",
    "slug": "pnas",
    "url": "https://www.pnas.org/doi/abs/10.1073/pnas.2606668123?af=R"
  },
  "original_language": "en",
  "account": null,
  "summary": "Proceedings of the National Academy of Sciences, Volume 123, Issue 30, July 2026. SignificanceThe striking formation patterns of flocking birds have long been hypothesized to yield energetic benefits, which arise from unsteady aerodynamic interactions between birds’ wings and their neighbors’ vortical wakes. Yet despite decades of ...",
  "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."
}