Scientists combined satellite collars and cameras to study polar bear denning, showing how cubs adapt before leaving.

It shows a mother polar bear walking through the frozen landscape — then a cub pops up out of the den and slips and slides over the ice toward her. As the cub reaches its mom, another two emerge ...

A polar bear peacefully snoozing in a pillowy bed of flowers beat out some amazing shots to win the Nature Photography ...

A polar bear cub named Nur was introduced in Sao Paulo on Thursday, marking a historic milestone as the first polar bear born in Latin America, according to the Sao Paulo Aquarium, where she resides.

It shows a mother polar bear walking through the frozen landscape — then a cub pops up out of the den and slips and slides over the ice toward her. As the cub reaches its mom, another two emerge and ...