[ORGANIZATION]
National Scientific and Technical Research Council
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Evolutionary timeline of mammal-like pregnancy
2 clusters · 8 sources · last updated
Latest: Argentina fossils reveal oldest known evidence of pregnancy
Researchers have identified fossilized evidence of Chiniquodon theotonicus, a species of cynodont that lived approximately 236 million years ago, which suggests that the transition from egg-laying to live birth occurred
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New frog species discovered in Costa Rican coffee plantations
[CULTURE] · 2 sources ·