A police officer feeds a roe deer at the Forest Public Security Bureau of Sunite Right Banner in Xilingol League, north China's Inner Mongolia Autonomous Region on March 13, 2020. In recent years, the Forest Public Security Bureau of Sunite Right Banner has strengthened its patrolling efforts and rescued many wild animals. (Xinhua/Lian Zhen)

Police officers feed a roe deer at the Forest Public Security Bureau of Sunite Right Banner in Xilingol League, north China's Inner Mongolia Autonomous Region on March 13, 2020. In recent years, the Forest Public Security Bureau of Sunite Right Banner has strengthened its patrolling efforts and rescued many wild animals. (Xinhua/Lian Zhen)

Photo taken on March 13, 2020 shows a roe deer rescued by Forest Public Security Bureau of Sunite Right Banner in Xilingol League, north China's Inner Mongolia Autonomous Region. In recent years, the Forest Public Security Bureau of Sunite Right Banner has strengthened its patrolling efforts and rescued many wild animals. (Xinhua/Wei Jingyu)

A police officer feeds a roe deer at the Forest Public Security Bureau of Sunite Right Banner in Xilingol League, north China's Inner Mongolia Autonomous Region on March 13, 2020. In recent years, the Forest Public Security Bureau of Sunite Right Banner has strengthened its patrolling efforts and rescued many wild animals. (Xinhua/Lian Zhen)

Photo taken on March 13, 2020 shows a golden eagle rescued by Forest Public Security Bureau of Sunite Right Banner in Xilingol League, north China's Inner Mongolia Autonomous Region. In recent years, the Forest Public Security Bureau of Sunite Right Banner has strengthened its patrolling efforts and rescued many wild animals. (Xinhua/Lian Zhen)

Photo taken on March 13, 2020 shows a golden eagle rescued by Forest Public Security Bureau of Sunite Right Banner in Xilingol League, north China's Inner Mongolia Autonomous Region. In recent years, the Forest Public Security Bureau of Sunite Right Banner has strengthened its patrolling efforts and rescued many wild animals. (Xinhua/Lian Zhen)

Photo taken on March 13, 2020 shows a manul rescued by Forest Public Security Bureau of Sunite Right Banner in Xilingol League, north China's Inner Mongolia Autonomous Region. In recent years, the Forest Public Security Bureau of Sunite Right Banner has strengthened its patrolling efforts and rescued many wild animals. (Xinhua/Lian Zhen)

Photo taken on March 13, 2020 shows a manul rescued by Forest Public Security Bureau of Sunite Right Banner in Xilingol League, north China's Inner Mongolia Autonomous Region. In recent years, the Forest Public Security Bureau of Sunite Right Banner has strengthened its patrolling efforts and rescued many wild animals. (Xinhua/Lian Zhen)

Photo taken on March 13, 2020 shows a red deer at a wildlife rescue station in Sunite Right Banner of Xilingol League, north China's Inner Mongolia Autonomous Region. In recent years, the Forest Public Security Bureau of Sunite Right Banner has strengthened its patrolling efforts and rescued many wild animals. (Xinhua/Ren Junchuan)

Photo taken on March 13, 2020 shows roe deer rescued by Forest Public Security Bureau of Sunite Right Banner in Xilingol League, north China's Inner Mongolia Autonomous Region. In recent years, the Forest Public Security Bureau of Sunite Right Banner has strengthened its patrolling efforts and rescued many wild animals. (Xinhua/Lian Zhen)

Photo taken on March 13, 2020 shows a manul rescued by Forest Public Security Bureau of Sunite Right Banner in Xilingol League, north China's Inner Mongolia Autonomous Region. In recent years, the Forest Public Security Bureau of Sunite Right Banner has strengthened its patrolling efforts and rescued many wild animals. (Xinhua/Wei Jingyu)