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Is blubber waterproof?

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I can't believe that female polar bears are lighter in weight than male polar bears - when females carry the babies

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I can't believe polar bears can hold their breath for 10 hours.

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if their food becomes extinc what will happen   

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if their food becomes extinc what will happen   

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Polar bears have hairs and bumps on their  paws to help them walk on slippery ice as well.

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Polar bears have hairs and bumps on their  paws to help them walk on slippery ice as well.

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What is the smallest carnivore in the world?

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What is the smallest carnivore in the world?

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when arctic ice melts in summer polar bears move inland and eat what ever they can

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when arctic ice melts in summer polar bears move inland and eat what ever they can

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can polar bears really stay .underwater for  10 hours?

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Polar bears feet are so big because it helps them walk on snow and ice.

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Polar bears feet are so big because it helps them walk on snow and ice.

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Polar bears' paws have small bumps and long hairs on them.

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Polar bears' paws have small bumps and long hairs on them.

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polar bears eat other dead animals killed by other predators

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polar bears eat other dead animals killed by other predators

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Polar bears are such super swimmers that their scientific name is Ursus maritimus or "sea bear".

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why are females lighter than males

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Polar bears feet are about 12 inches wide

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Polar bears feet are about 12 inches wide

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a polar bears favorite food is a baby ring seal

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a polar bears favorite food is a baby ring seal