Polar bears can fall asleep anytime, anywhere, even sitting up.  

A young male polar bear prowls the tundra.  

A polar bear cools off at 5 degrees Fahrenheit, considered a warm morning on the tundra.  

A polar bear eyes passengers from ten feet below the tundra buggy that takes visitors out to see the animals.  

Huge paws need huge claws to keep a polar bear alive.  

A polar bear naps while squatting.  

Three wary polar bears cross the tundra, watching for mature males.  

Stretching and waiting for the ice to freeze on Hudson Bay  

Polar bears play fight to learn valuable survival skills.  

A mother and cub watch warily for large male polar bears.  

A snow bath and a good tongue clean-up keep the coat clean.