What special features characterize polar bears?

To add to Audrey Ackerman's answer: according to some sources, polar bear fur is transparent, not white. I believe it looks white because, for the most part, it reflects snow. read more

While a mother polar bear is in the den nursing her cubs, she will not eat, drink or defecate. Another feature of the polar bear is its skin color. The bear's fur is white, but the skin underneath is black. The polar bear hunts seals and other Arctic wildlife primarily by using its highly developed sense of smell. read more

To add to Audrey Ackerman’s answer: according to some sources, polar bear fur is transparent, not white. I believe it looks white because, for the most part, it reflects snow. read more