Ten giant pandas greet feeders at the Bifengxia base of the Chinese giant panda protection and research center, in Ya'an City, southwest China's Sichuan Province, January 4, 2010. The ten giant pandas selected by the center will be flown from the Bifengxia base to Shanghai in east China for the Shanghai 2010 World Expo on January 5. [Xinhua]

Giant pandas play at the Bifengxia base of the Chinese giant panda protection and research center, in Ya'an City, southwest China's Sichuan Province, January 4, 2010. [Xinhua]