The primary color of a polar bear's fur is actually clear, but it appears white. The polar bear's fur consists of hollow hair shafts that trap air, which provides insulation and enhances buoyancy in the water. These transparent hairs reflect visible light, making the fur look white, which helps polar bears blend seamlessly with their icy Arctic environment. This camouflage is essential for hunting seals, their primary prey. Interestingly, beneath their fur, polar bears have black skin which helps absorb sunlight for warmth. Their unique adaptation to the cold climate emphasizes the polar bear's specialized evolutionary traits for survival in extreme conditions.