Polar bears appear white due to their fur, which is actually made up of hollow, transparent hairs that reflect and scatter visible light, giving them their iconic white appearance.
However, beneath this white fur, their skin is jet-black.
This black skin color is an important adaptation that helps polar bears survive in their frigid Arctic environment.
The black skin absorbs more sunlight, allowing the bears to capture the sun’s heat efficiently and retain warmth in extremely cold temperatures.
This combination of a white fur coat for camouflage in the snowy landscape and black skin for heat absorption is a remarkable evolutionary adaptation for life in harsh Arctic conditions