Members of the auxiliary brigade patrol on the boat in Hukou County of Jiujiang City, east China's Jiangxi Province, Aug. 6, 2018. The auxiliary patrol brigade consists of 11 members, most of whom used to be fishermen. Now the brigade assists the fishery administration and water police to help with the preservation of cowfish, an endangered subspecies of the finless porpoise in the Yangtze River. (Xinhua/Jin Liwang)
