Tundra - Polar bears

Polar bears have many physical adaptations that help them survive in the frozen tundra. Their thick fur keeps them warm in frigid air and water; used for camouflage in ice and snow also. Their paws provide traction on ice and are broad for use in swimming. Their claws are curved to dig through ice. Their ears and tail are short to minimize heat loss. Their teeth are more jagged than most bears, suiting a carnivore. They also have fat layers that keeps them warm. Their skin is black to attract heat from the suns rays to keep them warm.