Giant panda cub Yuan Zai climbs the tree at the Taipei Zoo in Taipei, southeast China's Taiwan, April 4, 2014. (Xinhua/Wu Ching-teng)
Giant panda cub Yuan Zai climbs the tree at the Taipei Zoo in Taipei, southeast China's Taiwan, April 4, 2014. (Xinhua/Wu Ching-teng)
Giant panda cub Yuan Zai (up) and her mother Yuan Yuan are seen at the Taipei Zoo in Taipei, southeast China's Taiwan, April 4, 2014. (Xinhua/Wu Ching-teng)