Kali arrived at the Saint Louis Zoo in 2015 after being orphaned in the wild. He was the original resident of Polar Bear ...

Kali broke hearts from the moment he came to the St. Louis Zoo's then-new Polar Bear Point as an 850-pound 2-year-old in 2015 ...

The Saint Louis Zoo announced Wednesday that they have exchanged one of their long-time resident polar bears for young polar ...

Just on the edge of the western Hudson Bay lies the small town of Churchill, Manitoba. Here, the sea meets the boreal forest ...

Polar bear mothers in the Arctic generally give birth in early January around the start of the new year. The cubs are born ...

For nearly a decade, researchers have gathered camera footage from outside the dens of female polar bears and their cubs on ...

Every wondered why polar bears don't freeze in the extreme temperatures of the Arctic? Well, scientists finally have the ...

Czech cold-water swimmers have set a new world record for the largest polar bear dip. A total of 2,461 took part in the ...

In a new study, researchers used remote cameras and data from GPS tracking collars to learn more about this vulnerable period ...

The time lapse footage is the result of almost a decade of work monitoring the vulnerable predators' maternal behavior.

Polar bear cubs have been filmed emerging from their dens for the first time. The extremely rare footage was captured by ...

International Polar Bear Day highlights conservation efforts to protect polar bears and their fragile Arctic habitat.