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Polar bears live in the Arctik, near the North Pole Today, there are about 20000 polar bears all over the world. The polar bear is the largest bear on  earth. They live for 20-30 years. Mostly, polar bears spend their time out at sea and they are very good swimmers as well as well as being good runners. In 1998, a polar bear was the symbol of the Olympic Games in Canada. Polar bears hunt seals? fish and sea birds. In the summer, they like eating berries. Although polar bears look nice and funny, they are dangerous and aggressive. Global warming is very harmful for polar bears. It melts the ice in the Arctic very quckly and the polar bear is Losing its home. Besides, people kill polar bears for its meat and fur. The WWF has announced 2013 to be the year of the polar bear.