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LiveScience
@LiveScience
shared a link
2025-01-05 23:04:40
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Our ancient primate ancestors mostly had twins humans don't, for a good evolutionary reason
www.livescience.com
Twins are pretty rare, accounting for just 3% of births in the U.S. these days. But new research shows that for primates 60 million years ago, giving birth to twins was the norm.
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