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What makes birds bone lightz?

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Niv61

Lvl 1
∙ 14y ago
Updated: 8/20/2019

If you mean "light" as in "the opposite of being heavy", then:

Bird bones are hollow. Well, not completely, but if you look at the structures they are not as "filled up" as, say, human bones.

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Wiki User

∙ 14y ago

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