Polar bear

We had so much fun watching a video about polar bear. A symbol of the Arctic, polar bears are the world's largest land predator and biggest member of the bear family. With heavy fur, blubber up to four inches thick and black skin that absorbs heat from the sun, polar bears are amazingly well adapted to the Arctic climate. Adult males normally weigh 351 to 546 kilograms (775 to 1,200 pounds). Adult females are much smaller, about 150 to 295 kilograms (330 to 650 pounds). They hunt their main prey there: seals. Polar bears especially like to eat seal blubber. That's because it has a high fat content. They sometimes eat other foods like walruses or beached whales, but seals are their most important food source.

Polar bears mothers usually give birth to twins. Polar bear cubs weigh just over one pound at birth! They are about the size of a stick of butter. They have fine, soft fur. 

Polar bear cubs remain with their mother in the den until they are three or four months old, drinking her rich milk. The cubs snuggle close to mom to stay warm. Pregnant female bears dig snow dens in the fall to give birth—but this is not a true hibernation. They remain in the dens for four to eight months. During that time, they don't eat or drink and must live off their fat reserves.