Two-thirds of the world's polar bears could be extinct by 2050 if greenhouse gas-fueled global warming keeps melting their Arctic sea-ice habitat. The Center has led the charge to save polar bears ...

Recent studies project that polar bears in Alaska will go extinct within this century — and as early as mid-century — unless there are immediate, aggressive reductions in greenhouse gas pollution.

Ursus spelaeus‘s population began to diminish about 15,000 years ago before finally going extinct. Unlike many ... By comparison, the heaviest polar bear — considered to be the largest species ...

The size of Crete, Wrangel is so cut off that the very last population of woolly mammoth survived there thousands of years after going extinct ... concentration of polar bears on the planet.

“Polar bears are in danger of going extinct in much of their range due to a warming arctic. They were the first vertebrate species listed under the U.S. Endangered Species Act as threatened due ...