File photo shows the male brown-and-white panda Qizai (meaning "7th son") at the Qinling research center of giant panda breeding in northwest China's Shaanxi Province. A ceremony was held Wednesday at the Qinling research center of giant panda breeding in northwest China's Shaanxi Province, to celebrate the adoption of the world's only captive brown giant panda. (Qinling research center of giant panda breeding/Handout via Xinhua)