Polar Bears

On International Polar Bear Day, let's celebrate the largest of the bear species with these magnificent polar bear photos.

As climate change destroys their hunting grounds, some bears eat garbage to survive.

A new study shows that polar bears require more food than previously thought.

A polar bear searches in vain for trash to eat before collapsing.

Hundreds of hungry polar bears were treated to a whale of a buffet last week when the carnivores descended on a whale carcass on the coast of Russia's Wrangel Island.

A polar bear at the San Diego Zoo named Tatqiq recently went the extra mile to help scientific research.

The Trump administration and Republicans have introduced at least 11 pieces of legislation that could weaken the Endangered Species Act or prevent some threatened wildlife from being protected.

How is rapid warming in the Arctic affecting animals that are adapted to cold? A wildlife biologist is using many techniques to find out, including stalking muskoxen in a polar bear costume.

Eating, swimming and playing — a body cam reveals a polar bear's life.

Reindeer, mountain lions, deer and polar bears may all be feeling the pinch as the planet warms, new research suggests.

Five meteorologists surrounded by polar bears at a research station on a remote island in high-Arctic Russia have been rescued

Some hungry polar bears are turning to seabird colonies for sustenance.

A dramatic photograph of a starving polar bear went viral online, but scientists say it's a stretch to definitively link polar-bear starvation to climate change.

Knut the polar bear, the global sensation that captured the public imagination, died of an autoimmune disorder that caused his immune system to attack his brain.

Polar bears are known to be excellent swimmers, but new research suggests that they are also superb divers.

An occasional dolphin kill won't be enough to sustain polar bears as global climate continues to warm.

For the first time, scientists have reported polar bears preying on white-beaked dolphins in Svalbard. Check out these stunning photos of the bears and their dolphin meals on an icy island.

Even though some polar bears are hunting on land more often in areas hit by shrinking Arctic sea ice, a diet of bird eggs and berries can't sustain these huge animals, a new study finds.

Polar bear sex involves long-distance tracking, fierce battles and lengthy copulation.