Polar bear fur resists ice because of a natural greasy coating called sebum. This helps them move quietly while hunting.

Researchers have directly linked population decline in polar bears living in Western Hudson Bay to shrinking sea ice caused by climate change.

There's something about polar bears that's always puzzled the people who study them. How do they seem to repel snow?

New research finds that grease that coats polar bear fur contains a specialized mixture of chemicals that make it resistant ...