When life in the North demanded teeth better shaped for ripping apart seals than munching berries, the polar bear’s molar teeth changed significantly from those of the brown bear. The bears also grew white fur, which camouflaged them in their snow-covered surroundings and gave them a hunting advantage.
Why are polar bears white evolution?
Polar bears have white fur so that they can camouflage into their environment. Their coat is so well camouflaged in Arctic environments that it can sometimes pass as a snow drift. Interestingly, the polar bear’s coat has no white pigment; in fact, a polar bear’s skin is black and its hairs are hollow.
Why do polar bears have white fur Class 7?
Polar bears have white fur (to protect them from their predators and helps them in catching prey). They have two thick layers of fur to prevent from extreme cold. They also have layer of fat under the skin. Due to which they are fully insulated.
Do polar bears eat penguins?
Polar bears do not eat penguins, since penguins live in the southern hemisphere and polar bears live in the northern hemisphere.
Are polar bears white or black?
2. Polar bears are actually black, not white. Polar bear fur is translucent, and only appears white because it reflects visible light. Beneath all that thick fur, their skin is jet black.