Polar bears are related to brown bears and are possibly the largest land carnivores in the world. Among all bears, polar bears are unique for two reasons. They are almost entirely carnivorous, and they spend the majority of their life in water. Polar Bears are born on land; however, they spend most of their lives at sea.
Polar Bears are the largest member of the bear family. Ursus Maritimus is the bear's scientific name, and it means sea bear. The polar bears' ancestors went through a series of evolutionary changes to survive the Arctic. Research shows that after brown bears and polar bears separated, there were periods where they had contact.