Children perform to welcome the return of US-born giant panda Mei Sheng to Wolong Giant Panda Nature Reserve in Chengdu, Southwest China's Sichuan Province on Wednesday, November 7, 2007. Cubs born overseas to pandas on loan belong to China and must be sent back to the country after they become sexually mature. The 4-year-old Mei Sheng will now look for a mate. [newsphoto]