The polar bear is one of the largest predators on Earth. Its weight is from 300 to 800 kg and the length can reach up to three meters. Light, and sometimes yellowish fur stores fat and protects from the cold, so the animals do not freeze or on land or under water. Interestingly, the skin of a bear under fur of the black color as the nose. Their feet have an unusual elongated shape that allows them not to fall through the snow and to overcome the distance of 30 kilometers. Due to the partitions between the fingers the animals are good swimmers and hunt underwater.
Unlike brown bears, their Northern brothers don't fall into a prolonged hibernation, they sleep for long, not every year, and mostly females.Bears are very well-developed sense of smell and sight. They can for miles to see and smell their prey.
The average life expectancy in the wild is about 30 years, in captivity — less