Inspired by polar bears: this new textile creates an “on-body greenhouse” effect to keep you warm. (Courtesy: W Viola et al. ACS Appl. Mater.Interfaces 10.1021/acsami.2c23075). A new double-layered ...

Differentiating a polar bear from a grizzly bear is easy thanks to their white coats of fur. But that fur isn’t just for camouflage against the frozen tundra.

Polar bears at Hogle Zoo in Salt Lake City on April 13, 2001. Researchers say they have successfully made a synthetic version of polar bear fur that is not only lighter than cotton but also warmer.