The largest bear in Alaska the polar bear has very special adaptations. Right now they can only live well in one type of habitat, on the sea ice. The polar bear's adaptations to life on the sea ice include a white coat with water repellent guard hairs and dense warm under fur. They also keep their nose and ears small and fur covered to protect them from the cold. Their teeth are made for a carnivorous instead of an omnivorous diet, and hair nearly completely covers the bottom of their feet.