When Did Animals Start Giving Birth to Live Young? This 236-Million-Year-Old Fossil Might Rewrite Mammals' Evolutionary History
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Most mammals today give birth to live offspring, rather than laying eggs. However, scientists are unsure of when exactly this characteristic emerged in the mammalian lineage.
Reported by 1 outlet — Smithsonian. See all sources ↓
Most mammals today give birth to live offspring, rather than laying eggs. However, scientists are unsure of when exactly this characteristic emerged in the mammalian lineage. One theory suggests that mammals became viviparous, or birthed live babies, only in recent evolutionary history. But a new study counters that notion.
Read the full report at Smithsonian ↗
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- Most mammals today give birth to live offspring, rather than laying eggs. However, scientists are unsure of when exactly this characteristic emerged in the mammalian lineage.
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- 1 outlet, average source rating 7.0/10.
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When Did Animals Start Giving Birth to Live Young? This 236-Million-Year-Old Fossil Might Rewrite Mammals' Evolutionary History
Sources1TypeCoverageSmithsonian