People trade caterpillar fungus in Ping'an District of Haidong City, northwest China's Qinghai Province, May 23, 2017. Many villagers in several autonomous prefectures in Qinghai started to collect the caterpillar fungus from May, as it is highly valued in the global market. The caterpillar fungus originated in Qinghai accounts for about 60 percent of China's overall caterpillar fungus production. (Xinhua/Wu Gang)
