Unknown population of tigers caught on video

A BBC camera crew investigating reports of tigers appearing well above the altitudes where they normally roam visited the highlands of Bhutan and came away with video proof of the endangered cats. Automated camera traps captured tigers hunting as high as 4,100 meters. The population in this highland valley may not be large, but every addition to the shrinking wild population of tigers is a major victory. Interestingly, this valley is the only place in the world shared by leopards, snow leopards, and tigers.