Unique lipids in polar bear sebum prevent ice accumulation, paving the way for eco-friendly anti-icing materials.

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

“Unwashed, greasy hair made it much harder for ice to stick. In contrast, when the polar bear hair was washed and the grease ...

Just before rare ice balls started washing up onshore along Lake Michigan on Jan. 5, Bear Lake had a sheet of ice over top of its own ice balls this season.  Mike Keil and Sue Keil took a photo on Dec ...