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A panda climbs a tree in its new enclosure at the Chengdu Giant Panda Field Research Centre near Chengdu on January 11, 2012. China released six, young captive pandas into semi-wild enclosures as part of a project aimed at helping the endangered bears adapt to the wild and eventually set them free. AFP PHOTO / Ed Jones (Photo credit should read Ed Jones/AFP/Getty Images)

A panda climbs a tree in its new enclosure at the Chengdu Giant Panda Field Research Centre near Chengdu on January 11, 2012.  China released six, young captive pandas into semi-wild enclosures as part of a project aimed at helping the endangered bears adapt to the wild and eventually set them free.  AFP PHOTO / Ed Jones (Photo credit should read Ed Jones/AFP/Getty Images)