This photo taken on May 9, 2024 shows a wild yak at the Changtang National Nature Reserve in Nyima County of Nagqu City, southwest China's Xizang Autonomous Region. Dubbed the "paradise of wild animals," Changtang National Nature Reserve is home to over 30 kinds of wild animals listed on China's national-level protection catalogue, including Tibetan antelopes and wild yaks. (Xinhua/Jiang Fan)