Polar bears live only in the northern Arctic. They have thick furs to enable them to live in very cold weather. The polar bear's skin is actually black, which allows it to soak up heat from the hot sun. They are good swimmers and will swim between ices floe. In the winter, female polar bears give birth hidden away in their dens. Polar bear cubs are very cute, but they grow up to be powerful predators. Polar bear meat can also be eaten and furs can be used as clothing, rugs, and blankets.