Aerial photo taken on July 9, 2020 shows an observation building in the Dayao Mountain National Nature Reserve in Jinxiu Yao Autonomous County, south China's Guangxi Zhuang Autonomous Region. Huang Tongfu, 48, has devoted himself to patrolling the Dayao Mountain National Nature Reserve for 14 years. His spouse, Huang Rixiu, the same age as him, was hired as a forest ranger in 2017. (Xinhua/Zhou Hua)
