Polar Bears

Sky turns psychedelic in must-see northern lights video

At Oregon Zoo, waste heat to be transferred from the tundra to the tropics

How polar bear cubs beat the summer heat

Spend 2 minutes as a wild polar bear in Alaska

Wobbly polar bear twins debut at German zoo

5 weird facts about polar bears you probably didn't know

Google Street View puts polar bears on the map

Polar bears changing hunting and dietary habits as ice shrinks

Watch a polar bear cub take his first steps

What killed polar bear Knut?

How can lasers protect polar bears from oil drilling?

Live webcam offers rare glimpse of migrating polar bears