Q:

How do polar bears breathe?

A:

Quick Answer

Polar bears breathe air through their noses and mouths and into their lungs. Polar bears are also adept at holding their breath while diving underwater, with polar bears in the wild being observed holding their breath for up to 72 seconds.

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Full Answer

Polar bears can reach up to 1,760 pounds, although the average male weighs from 550 to 1,320 pounds and the average female weighs anywhere from 200 to 700 pounds. Males range in height from 8 to 9 feet from nose to tail, while females of the species average 6 to 7 feet. Most polar bears live 20 to 25 years.

Polar bears are excellent swimmers, having been observed up to 200 miles out to sea. According to the World Conservation Union or IUCN, there are 25,000 or fewer polar bears remaining in the world.

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Related Questions

  • Q:

    What is an albino polar bear?

    A:

    Albino polar bears would differ from normal polar bears by having pink eyes, skin, noses and gums. To be an albino, a polar bear would need to inherit two copies of a recessive gene that interferes with the production of tyrosinase — an enzyme involved in the production of melanin.

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  • Q:

    What are some facts about polar bears?

    A:

    The polar bear is a carnivorous marine mammal that lives exclusively in the Arctic. A female polar bear typically gives birth to one or two cubs per litter. Male adult polar bears can weigh as much as 1700 pounds and be 9 feet long. They are the second largest land carnivores in the world.

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  • Q:

    Where do polar bears sleep?

    A:

    Polar bears sleep on the open ground, dig pits in gravel and sand at shorelines, or dig shallow areas in the snow or beneath protected ridges. Once inside these protective depressions, they turn their backs to the wind.

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  • Q:

    Do polar bears eat penguins?

    A:

    Polar bears do not eat penguins in the wild because the animals are not able to interact. Polar bears live in arctic regions, while penguins are found in the southern hemisphere.

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