Wild animals roam on grassland in Shuanghu County of Nagqu, SW China

A wild yak is seen on a grassland in Shuanghu County of Nagqu, southwest China's Tibet Autonomous Region, Oct. 21, 2019. Shuanghu, the world's highest county with an average elevation of 5,000 meters, lies within the Qiangtang National Nature Reserve where many endangered wild animals live and breed. (Xinhua/Chogo)