{"ok":true,"article":{"slug":"a-236-million-year-old-fossil-challenges-the-story-of-mammalian-live-birth-f992b56c","title":"A 236-million-year-old fossil challenges the story of mammalian live birth","url":"https://phys.org/news/2026-08-million-year-fossil-story-mammalian.html","canonical":"https://www.aimode.news/article/a-236-million-year-old-fossil-challenges-the-story-of-mammalian-live-birth-f992b56c","sourceName":"Phys.org","summary":"Some cynodonts may have been giving birth to live young much sooner in evolutionary history than previously assumed. A new Frontiers in Mammal Science study has offered the first compelling evidence that cynodonts may have been viviparous—a reproductive mode characterized by live birth.","category":"Science","image":null,"lang":"en","publishedAt":"2026-08-13T04:00:02+00:00","createdAt":"2026-08-13T04:30:12.663308+00:00"}}