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polet [3.4K]
3 years ago
8

Why can birds fly, but not humans?

Medicine
2 answers:
vampirchik [111]3 years ago
5 0

Answer:

Actually, birds bones are hollow, so they are lightweight. If you are a bird owner, and have held a bird, they are extremely lightweight. Humans are the opposite, and there bones are not hollow.

AleksandrR [38]3 years ago
4 0

Answer:

Its because birds have wings, and humans don't. Birds are also lightweight

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