Moms of the Animal Kingdom(image 2 of 15)

Animal Moms: Polar Bears

A female polar bear gets pregnant in the spring and promptly gains over 400 pounds, often doubling her original weight. She’ll need all that extra fat. When the hunting season ends in the fall, she slows way down, entering a hibernation-like state inside a maternity den. She stays half-asleep through the birth of her cubs, and by the time she emerges from her den she'll have fasted for as long as eight months.

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