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Only the mother bear is involved in raising the cubs. When she is pregnant, she digs a den in a snowdrift or in the permafrost and enters a state similar to hibernation until the cubs are born and developed enough to travel with her while she hunts. Before she even wakes, the cubs begin to nurse.

Once they are ready to travel, she brings them with her everywhere. The cubs learn from their mother how to hunt by watching and imitating.

A mother polar bear is very protective of her cubs, especially when it comes to adult male polar bears. The male bears will kill cubs in order to make the female ready to breed sooner.

Polar bear cubs are generally weened when the mother abandons them at about 2 1/2 years of age.

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15y ago

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