Working staff prepare the food for Panda "Qing Feng" to celebrate its five years old birthday at Nanshan Zoo in Yantai, east China's Shandong Province, Aug. 19, 2012. (Xinhua/Shen Jizhong)
Panda "Hua Ao" shares the birthday cake of its brother "Qing Feng" as Qing celebrates its five years old birthday at Nanshan Zoo in Yantai, east China's Shandong Province, Aug. 19, 2012. (Xinhua/Shen Jizhong)
Panda "Qing Feng" celebrates its five years old birthday at Nanshan Zoo in Yantai, east China's Shandong Province, Aug. 19, 2012. (Xinhua/Shen Jizhong)