From tracking invisible scent plumes on the wind to navigating a rapidly warming Arctic, the polar bear reveals both the ...

A new resident has arrived at the Oregon Zoo's Polar Passage habitat. Kallik, a three-year-old polar bear from the Saint Louis Zoo, explored his new home for the first time Friday morning. Kelly Gomez ...

One of the most attractive critters at the zoo splashes through frigid waters: polar bears, the beauties of the Arctic Circle. Most humans will never see a polar bear in the wild. So, we have to rely ...