Canada's Hudson Bay polar bear population plummets as climate change warms Arctic | Reuters
Polar bear - Wikipedia
Polar Bear Fact Sheet | Blog | Nature | PBS
Pizzlies, Grolars – Why Hybrid Grizzly Polar Bears Aren't The Answer | Polar Bears International
Polar Bear | Seneca Park Zoo
Canada's polar-bear capital Churchill warms too fast for bears - BBC News
Polar bear population - WWF Arctic
Bears: Polar Bears, Black Bears and Grizzly Bears (Kids Can Press Wildlife Series): Hodge, Deborah, Stephens, Pat: 9781550743555: Amazon.com: Books
White Bear (Ursus maritimus) | U.S. Fish & Wildlife Service
The death of a polar bear and the paradox of captivity | Aeon Essays
Top 10 facts about polar bears | WWF
Polar Bear Behavior | The Maryland Zoo
Polar Bear | International Association for Bear Research and Management
Name & Evolution | Polar Bears International
Polar Bear | International Association for Bear Research and Management
Saint Louis Zoo | Polar Bear
Polar Bear | National Wildlife Federation
Polar Bears & the Changing Arctic | Polar Bears International
Here's how polar bears might get traction on snow
Polar bears, pushed on land by climate change, get their own radar
Disneynature's Look Inside the Cold Life of a Polar Bear | Disney News
