Two people perform at the opening ceremony of a crayfish festival in Xuyi County, east China's Jiangsu Province, June 12, 2014. The 14th Xuyi Crayfish Festival kicked off on Thursday. Crayfish is an important industry in Xuyi, yielding an output value exceeding 10 billion yuan (1.6 billion U.S. dollars). (Xinhua/Zhou Haijun)