Video PlayerClose

George Schaller walks by a lake in Baiyu Township of Jiuzhi County in Guoluo Tibetan Autonomous Prefecture, northwest China's Qinghai Province, May 24, 2019. (Xinhua/Zhang Hongxiang)

George Schaller walks by a lake in Baiyu Township of Jiuzhi County in Guoluo Tibetan Autonomous Prefecture, northwest China's Qinghai Province, May 24, 2019. (Xinhua/Zhang Hongxiang)