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 ...

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 Lee and Aurora at the Columbus Zoo and Aquarium will be featured in an upcoming episode of "Mutual of Omaha’s Wild Kingdom Protecting the Wild." The episode will air on NBC at 10 a.m ...

or an extremely high risk of going extinct in the wild unless we do something about it." For example, he said, polar bears are considered vulnerable to extinction, while tigers are endangered (a ...