Forever Chemicals: A new study revealed that the fur of polar bears contains an oily substance that helps them remain dry despite the creatures sliding on ice and diving into the water to hunt.
o Fluorinated ski skins contain PFAs, widely used in nonstick cookware, water-repellent clothing, and grease-resistant products.
o PFAs do not break down easily and are linked to decreased fertility and developmental effects in children.
o Contains cholesterol and other fatty acids (possibly unique to polar bears, but further studies are needed).
o The only bear species classified as marine mammals, as they rely on Arctic sea ice for food and habitat.
o Some populations exist south of the Arctic Circle, e.g., Hudson Bay, Canada.
o Inhabit Alaska, Canada, Russia, Greenland, and Norway's northern islands (Svalbard).