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Because you have lungs and fish have gills.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoBecause your body is only capable of taking in oxygen from the air.
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Most fish species use gills to breathe true or false?
True.fish cant breath underwater with lungs.So they use gills to breath underwater.
Why do dolphins have a hole on their back?
Because they cant breath underwater so they use their hole to breath in and out the water
Why are whales not placed in the fishes?
because a fish can breath underwater and a whale cant its a mammal
Why can we breath air but not under water?
Under water doesnt have enough air molucules that we need. Therefore we cant breath underwater. :)
Where do hermit crabs get their oxygen?
They have modified gills, which means they breath air, but need 75-80% humidity. They cant breath underwater, they will drown!
Holding your breath under water?
Holding your breath underwater is when your head/face is underwater and you do not breath.
Can hippos breathe underwater?
Hippos can't "breath" underwater but they can hold their breath for long periods of time.
How do seals breath underwater?
Seals can't breath underwater, so they have to come to the surface for air.
How do you do the underwater challenge in Peru?
To do the underwater challenge in Peru, YOU HOLD YOUR BREATH UNDERWATER DUMMIES
Can hermit crabs breathe under water and oxygen?
no they breath oxygen like us
Can you breath underwater for five minutes?
No. Human beings cannot breath underwater at all without an external source of air.
How Can fish breath underwater?
they have gills.
