Land Food Not Enough for Polar Bears Driven Off Ice by Warming: Study
Polar bear diet - WWF Arctic
What do Polar Bears Eat? - AZ Animals
Polar Bears International - "If you think polar bears are cool, ice algae will blow your mind," writes biologist Jody Reimer in this blog post on the polar bear's food chain: http://bit.ly/ice-algae
Polar bears: Endangered creatures struggling to find food in Arctic | Nature | News | Express.co.uk