Polar Bear Mother With Cub
Photograph by Norbert RosingDutiful mothers, female polar bears usually give birth to twin cubs, which stay with her for more than two years until they can hunt and survive on their own.
Polar Bear Sleeps Soundly
Photograph by Flip NicklinA sleeping polar bear looks adorable, but beware! With no natural enemies, polar bears are at the top of the Arctic food chain. They are fearless, and will readily attack humans.
Polar Bear Cub Resting With Its Mother
Photograph by Flip NicklinIn winter, female polar bears give birth to two cubs in an igloo-like den, which insulates the mother and babies against the brutal winds and frigid Arctic temperatures outside.
