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236-Million-Year-Old Fossil Reveals a Stunning Secret About the Origins of Mammal Birth

Summary by Sci Tech Daily
An unusual growth mark in an ancient bone may help resolve a longstanding mystery surrounding the origins of mammalian reproduction. A microscopic growth mark preserved inside a 236 million-year-old fossil may help answer a longstanding question about how the ancestors of mammals reproduced. A study published in Frontiers in Mammal Science provides the first compelling [...]

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Sci Tech Daily broke the news in Encinitas, United States on Sunday, August 23, 2026.
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