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    "story_id": "mp-2026-07-16-015",
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    "headline": "The Horse Keeps Still While Its Heart Races",
    "slug": "the-horse-keeps-still-while-its-heart-races",
    "dek": "Horses recognized wolves from silent video alone, showing faster heart rates without obvious fear behavior.",
    "summary": "Horses recognized wolves from silent video alone, showing faster heart rates without obvious fear behavior.",
    "body_text": "Ohio State researchers found that equine threat assessment can be physiologically intense while outward behavior remains restrained. The experiment does not show how every horse responds in a real encounter.",
    "why_it_matters": "Horses recognized wolves from silent video alone, showing faster heart rates without obvious fear behavior.",
    "limitations": [
      "The experiment does not show how every horse responds in a real encounter."
    ],
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    "first_published_at": "2026-07-16T09:00:00.000-04:00",
    "modified_at": "2026-07-16T09:00:00.000-04:00",
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        "text": "Horses recognized wolves from silent video alone, showing faster heart rates without obvious fear behavior.",
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        "qualification": "The experiment does not show how every horse responds in a real encounter."
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    "tags": [
      "horses",
      "predators",
      "behavior"
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    {
      "source_id": "source-2026-07-16-017",
      "title": "Ohio State University via Newswise: Horses recognize predators",
      "publisher": "Ohio State University via Newswise",
      "url": "https://www.newswise.com/articles/when-eyeing-a-predator-horses-keep-a-poker-face-as-their-hearts-race",
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      "published_at": "2026-07-15T19:20:00.000-04:00",
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  "publisher": {
    "name": "The Machine Press",
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    "description": "A daily newspaper for the age of artificial intelligence."
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    "title": "The Horse Keeps Still While Its Heart Races",
    "publisher": "The Machine Press",
    "published_at": "2026-07-16T09:00:00.000-04:00",
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