How do whales and dolphins breathe?

Whales and dolphins are mammals and must breathe air to survive. Furthermore, unlike humans and other mammals, they are 'voluntary breathers', which means they must physically remember to go to the surface and breathe!




Depending on the species of whale or dolphin, lung capacity differs. But, they all return to the surface of the water, open a blowhole on the top of their heads (a watertight valve) expel air and quickly take in new before going down below the water's surface.


^all this is not true^
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How do whales breathe?

they breathe through an air hole in the back of they head and they must come up from under the water to the waters surface to inhale air through their air hole.  Yes!
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Do whales and dolphins breathe?

yes They are mammals and must come to the suface to breathe. Their nose is one the top of their head. When you see mist come up from one, that means it's breathing!!
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Where do whales breathe from?

You might think that whales breathe in and out of their blowhole -- But i'm fairly sure that actually, whales breathe in through their mouths. They come up to the surface, bre (MORE)

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Are killer whales dolphins or whales?

Killer whales are actually dolphins. They are the largest member of the dolphin family and are commonly referred to as orcas.
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Is a killer whale a whale or dolphin?

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Is a Dolphin a a whale?

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