Why Mammals Gave Up On Laying Eggs

Name: Why Mammals Gave Up On Laying Eggs
Uploaded: 2026-03-10T08:00:04-07:00
Duration: 9 min 51 s
Description: So… Why don’t we lay eggs? Most animals on Earth do: most invertebrates, including most insects, most fish, most amphibians, most reptiles, all birds and even a few mammals lay eggs to reproduce. So what about us? Why did our ancestors ditch the shell and start growing babies inside their bodies instead? Free to watch on Dr.Doc Kids.

202610 minHDDr.Doc Kids

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So… Why don’t we lay eggs? Most animals on Earth do: most invertebrates, including most insects, most fish, most amphibians, most reptiles, all birds and even a few mammals lay eggs to reproduce. So what about us? Why did our ancestors ditch the shell and start growing babies inside their bodies instead? Free to watch on Dr.Doc Kids.

Courtesy of Deep Look on YouTube. Watch on YouTube ↗

KidsAnimals & Naturenatureinsectseggschickens