Taishan, a giant panda born in the United States, strolls at its new home in the Ya'an Bifeng Gorge Breeding Base of the Wolong Giant Panda Protection and Research Center, southwest China's Sichuan Province, March 9, 2010. The 4-year-old male giant panda, which was born in July 2005 and raised at the National Zoo of Washington D.C., concluded its one-month quarantine after it arrived here in February and greeted the public on Tuesday. (Xinhua/Chen Xie)

Taishan, a giant panda born in the United States, strolls at its new home in the Ya'an Bifeng Gorge Breeding Base of the Wolong Giant Panda Protection and Research Center, southwest China's Sichuan Province, March 9, 2010.  (Xinhua/Chen Xie)

Taishan, a giant panda born in the United States, strolls at its new home in the Ya'an Bifeng Gorge Breeding Base of the Wolong Giant Panda Protection and Research Center, southwest China's Sichuan Province, March 9, 2010.  (Xinhua/Chen Xie)

Taishan, a giant panda born in the United States, strolls at its new home in the Ya'an Bifeng Gorge Breeding Base of the Wolong Giant Panda Protection and Research Center, southwest China's Sichuan Province, March 9, 2010.  (Xinhua/Chen Xie)