How an Egg Hatches

Clip: Season 37 Episode 12 | 1m 45s | Video has closed captioning.

How is it possible that an egg can be strong enough to provide protection, yet soft enough that a baby bird can break through? See the remarkable way hatchlings are able to break out of their eggs.

Aired: 04/10/19

Rating: NR

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How an Egg Hatches

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