The polar bear is the largest carnivore on the earth. Adult males weigh between 350 to 680 kilograms (770 to 1500 pounds). They can measure between 2.4 to 3 meters in length (7.9 to 9.8 feet)....
They are mammals and mammals have fur on the body. And also, the fur on them is too keep themselves warm at arctic regions because these regions too cold regions