They don't. Polar bears cannot breathe under water.
The same way as most other animal life, at least other mammals. The inhale through their nose and mouth into their lungs and exhale by the same route in reverse. Long snout helps warm the inhaled air, and along with a large, Roman nose, they have asense of smell. Polar bears do not breath under water; they just hold their breath.
Polar bears breathe above water.
When polar bears breathe, their lungs fill with a mixture of gases including oxygen. The polar bear's body separates out most of the gases which are not oxygen and expels them. The oxygen is then transported into the bloodstream by small vessels in the lungs.
Physically, they breathe through their noses or mouths. In the Arctic, they come up for air through what are sometimes called 'blowholes'. And sometimes, Polar bears are waiting for them there.
No. Polar bears are mammals, and mammals breathe through lungs. Lungs don't work underwater. Some mammals can stay underwater for what seems to us a remarkably long time. Tens of minutes, yes a few of them. An hour is doubtful. A year - forget it.
It can breathe from its nose and mouth.
They breath air into their lungs through their nasal passage. This is how all mammals breath.by breathing it in? I'm pretty sure its obvious but the fact that you had to ask makes me hesitant as I now feel there's something way more complicated
Physically, they breathe through their noses or mouths. In the Arctic, they come up for air through what are sometimes called 'blowholes'. And sometimes, Polar bears are waiting for them there.
No, polar bears have lungs just like humans and other mammals. Polar bears can hold their breath for several minutes at a time, but they have to come up to breath frequently.
Same system as us humans and all other mammals use: the respiratory system, i.e., using their lungs to breathe.
AnswerThey breathe oxygen, like we do.
the polar bear eats seals which are not fish so they can't breathe under water. so they make holes in the ice (polar seals live in icy places) in witch they can enter the water and breathe through. so polar bears wait at the holes and when a seal pops up they eat it.