The White Pants Yao students perform the whipping top during a sports festival in Lihu Yao autonomous township of Nandan county, South China's Guangxi Zhuang autonomous region, Dec 7, 2016. The White Pants Yao, or Baiku Yao in Chinese, is a branch of the Yao ethnic group in Southwest China. Playing the whipping top is a popular game for them during festival times. [Photo/Xinhua]