Learn more about polar bear sebum, the oil on their fur that prevents ice from sticking to them, and how it could be used to replace certain PFAS. Learn more about polar bear sebum, the oil on their fur that prevents ice from sticking to them, and how it could be used to replace certain PFAS. Planet Earth All Articles | Discover Magazine
An Unwashed, Greasy Hair Day Actually Keeps Polar Bears Ice-Free
