There are no bears on most of the Aleutians Islands today. But a new study reveals that bears likely lived in Unalaska and ...

White fur, blubbery skin, sharp claws. Polar bears seem perfectly adapted to their frigid habitat up north. Now, researchers have discovered the bears have another unexpected Arctic adaptation ...

The bears’ greasy fur is the secret to the popular species’ survival in one of Earth’s most punishing climates. The grease, also known as sebum, is made up of cholesterol, fatty acids and ...

Siku, a polar bear at Lincoln Park Zoo, developed allergies to various substances including human hair dander (Credit: Lincoln Park Zoo) It may be that zoo animals are so well cared for they ...

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 ...

Polar bears are very closely related to brown bears ... The first is a large downy layer that’s located right next to their skin. The other layer is made of longer hairs called guard hairs ...

In 2018, staff at Lincoln Park Zoo in Chicago began to notice something unusual about a male polar bear named Siku. He was losing hair, revealing patches of black skin underneath. Evidently itchy ...