For the first time, video from Jilin Province in China captures a wild Siberian tigress with five cubs, an encouraging sign for the endangered species at the world's largest tiger reserve.

Decades ago, India’s tigers were on the brink of extinction. Slowly, their numbers have rebounded. But that ecological success has prompted a dire problem—and a race to save many of them from genetic ...

The most complete bear ever recovered from Siberia’s frozen ground looks less like a fossil and more like a sleeping animal ...