Giant panda Yunyun plays at the Bifeng Gorge Breeding Base of Sichuan in Ya'an, southwest China's Sichuan Province, Jan. 5, 2010. Ten giant pandas Pingping, An'an, Yunyun, Youyou, Minmin, Hanyuan, Zhuangmei, Aoyun, Wuyang and Aling setted out for Shanghai, host city of the 2010 World Expo, Tuesday on a chartered plane for a year-long display. [Chen Xie/Xinhua]