Amur tigers, also known as Siberian tigers, are the largest cats in the world. They are also endangered. Fewer than 500 of them roam the mountains of eastern Russia, but at the Smithsonian's National ...
Two of three Amur tiger cubs rest adorably at the Henry Doorly Zoo and Aquarium in September 2016. A cheetah looks toward senior keeper Samantha Heckart before a training exercise on March 17, 2015, ...