Today it is estimated that there are about 28,000 polar bears worldwide. Most of the population is located in Canada and the Soviet Union. The rest of it is in Greenland and Norway.
As soon as spring comes, the mother bear leads her cubs to the coast along the open sea, where seals and walrus are abundant. The mother will fiercely protect her cubs from any perceived danger. The cubs remain with their mother for 2 1/2 years. Because of this, most adult female polar bears breed only every third year.