Though the mother loses about half her body weight ... because they can monitor the movements of polar bears over several years, most collars only gather data every few hours, and they're not ...

Only one increased its weight ... Even those bears that were foraging lost body weight at the same rate as those that laid down. ‘Polar bears are not grizzly bears wearing white coats.

Declines in polar bear body size linked to nutritional stress ... Prior surveys during September 1987-2003 had observed only 4% of bears swimming in open water and none drowned (Monnett and Gleason ...

Paetkau's photo, titled "Polar Bear Amid Fireweed Blooms," not only earned Paetkau the top slot in the online contest, which is judged by a "jury" of photographers, but also the prize that comes ...

Inside the den, it can be up to 25°C (45°F) hotter than on the surface thanks to the mother's body heat. So, by looking for when the polar bear stopped ... their mothers, only being spotted ...

Though the mother loses about half her body weight ... because they can monitor the movements of polar bears over several years, most collars only gather data every few hours, and they’re ...

Two-year-old twin polar bears Kallik (pronounced Kah-LEEK), left, and Kallu (Kah-LOO) take a swim during their public debut ...

female polar bears in Svalbard–an archipelago between mainland Norway and the North Pole–were fitted with GPS satellite collars. The devices recorded their location, activity levels, and body ...