Scientists collected video from 20 bears during ice-free months to understand whether the animals can survive longer periods on land in a warming world.

The drastic changes in the Arctic wrought by global warming aren't just threatening that icon of climate change the polar bear, they're also jeopardizing the health of other species--like the Pacific ...

They were visitor favorites at San Diego Zoo, where they lived for well more than two decades. Kalluk, a 24-year-old polar ...

Move over, polar bear. The Pacific walrus may be the new icon of global warming.