Polar bear has 3 eyelids - the third helps protect the bear's eyes from the elements. : r/polarbears
A Year in the Life of a Polar Bear | Churchill, Canada
polarbear with three cubs - Image Abyss
Royal Canadian Institute for Science on Twitter: "Polar bears have 3 eyelids! The third eyelid helps protect their eyes from the elements. 6/7 https://t.co/9zNvlAyR8Z" / Twitter
International ban on polar bear trade rejected
Amazon.com: Schleich Wild Life, Animal Figurine, Animal Toys for Boys and Girls 3-8 Years Old, Polar Bear, Ages 3+ : Schleich: Toys & Games
To the Arctic,' an Imax Polar Bear Documentary - The New York Times