Why is the white bear the king of arctic animals?

The polar bear can be called the king of the Arctic because it is the largest carnivore in the Arctic. Adult polar bears can reach more than 2.5 meters in length and weigh more than 500 kilograms. Just as the penguin is the symbol of the South Pole, the representative of the North Pole is the polar bear. It can be said that the polar bear is a veritable king of the Arctic. Polar bears mainly live on the ice sheet of the Arctic Ocean and feed on seals, especially ring seals. Sometimes, they also go to rest, feed and breed on land. Polar bear's hair is tubular and hollow, like a thin tube, which can not only reduce weight, but also enhance warmth and buoyancy when swimming. Therefore, polar bears are excellent swimmers, and it is no problem to swim hundreds of kilometers in the cold Arctic Ocean. In order to catch seals, polar bears have developed a good skill. It is observed that the instantaneous speed when they pounce on their prey can reach 200 kilometers per hour. And their teeth are sharp and powerful, and their curved claws are like a row of sharp iron hooks. Once their prey is caught, it is difficult to escape. Source: Today's Middle School Students (First Edition)