A worker feeds a newly-born panda cub at the Bifengxia Giant Panda Research Center in Ya'an, in Southwest China's Sichuan province, July 7, 2008. Giant panda 'Guo Guo' who was relocated after the deadly 7.9-magnitude earthquake rocked Sichuan in May, gave birth Sunday morning to twin cubs. [Xinhua]

A worker takes care of a newly-born panda cub at the Bifengxia Giant Panda Research Center in Ya'an, in Southwest China's Sichuan province, July 7, 2008. Giant panda 'Guo Guo' who was relocated after the deadly 7.9-magnitude earthquake rocked Sichuan in May, gave birth Sunday morning to twin cubs. [Xinhua]