People of the Tu ethnic minority perform the “Wutu” dance during a ceremony at Nianduhu village in Tongren county, Qinghai province, December 17, 2008. The annual ceremony is held to dispel diseases and exorcise evils. “Wutu” is an equivalent to “tiger” in the dialects of ancient Chinese. Picture taken December 17, 2008. REUTERS/Stringer (CHINA). CHINA OUT. NO COMMERCIAL OR EDITORIAL SALES IN CHINA.