A segment of the polar bear population is at risk of extinction should ice-free periods continue to get longer, researchers have determined using analysis of the sea ice as well as the health of the ...

The U.S. Fish and Wildlife Service has estimated that there have been sharp declines in Alaska's polar bear population. Alaska polar bears face serious threats because of rising global temperatures ...

A new study finds a link between chemicals and bone loss that could damage males' penises, potentially harming reproduction.

Polar bears are one of the most important apex predators in the Arctic. Their presence helps to keep the populations of aquatic animals, such as seals and walruses, in check. Were they not there, ...

Expert predicts two-thirds of polar bear population could disappear in 50 years. Nov. 15 2013— -- The town of Churchill in Manitoba, Canada, is known as the "Polar Bear Capital of the World," ...

You’ve heard the slogans: save the whales, protect our pollinators. You may have lamented the decline of polar bears or the last of the northern white rhinos. But scientists are only beginning to ...

ST. LOUIS — A male polar bear is leaving the Saint Louis Zoo and heading across the country. The zoo said Kallik will move to the Oregon Zoo in Portland later this fall. "The moves are part of a ...