Polar bear ranges increase as sea ice shrinks - The Wildlife Society
Polar bears: The largest land carnivores | Live Science
Polar Bears Can Be Found in Which Countries? - Geography Realm
Polar Bear | National Wildlife Federation
A Clever Population of Polar Bears Survives on Glacial Ice in Greenland | Smart News| Smithsonian Magazine
Polar Bear photos, facts, and map
Watch 1,000 Polar Bears Spar and Nap as They Wait for Hudson Bay to Freeze (Live Cam) • The National Wildlife Federation Blog : The National Wildlife Federation Blog
How Polar Bears Work | HowStuffWorks
This Alaskan Town Is Being Overrun by Polar Bears and Tourists | Condé Nast Traveler
Polar bears are on the move and you can watch the migration live - Lonely Planet
Polar Bears Don't Go Into Hibernation-Like State in Summer, Researchers Say - The New York Times
Most Polar Bears To Disappear By End Of Century, Study Finds | Time
Polar bear - Wikipedia
Threatened by melting sea ice, polar bears' status up for review under Endangered Species Act