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Fossil Evidence Pushes Back Origin of Live Birth by 90 Million Years

Paleontologists studying a 236-million-year-old cynodont fossil from Argentina say they have found the earliest evidence yet of viviparity (live birth) in the evolutionary line that leads to mammals, pushing back the origin of this reproductive strategy by as much as 90 to 95 million years. The post Fossil Evidence Pushes Back Origin of Live Birth by 90 Million Years appeared first on Sci.News:…

sci.news ·2026-08-13

Fossil Evidence Pushes Back Origin of Live Birth by 90 Million Years

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