How do Crocodiles breathe underwater?

Crocodiles have an amazing ability to breathe and hunt underwater at the same time.

By closing a flap of skin at the back of their throats they prevent water from flowing into their lungs.

They hold air in their lungs until they resurface.

They are able to keep their mouths open to grab prey underwater, although they usually move to land to swallow it.

They also have flaps that can be closed over the nostril and ear openings.

How do Crocodiles breathe underwater?

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