A citizen deliver pyramid-shaped glutinous rice dumplings to the panda pavilion at the Nanshan Zoo in Yantai, east China's Shandong province, June 4, 2011. A dozen or so citizens were invited to the zoo to make "special" glutinous rice dumplings, a kind of traditional snack food during the Dragon Boat Festival, for pandas. The Dragon Boat Festival arrives on June 6 this year. (Xinhua/Shen Jizhong)