The giant panda "Si Jia" plays in Yunnan Safari Park in Kunming, capital of Southwest China's Yunnan province, on Aug 12, 2012, on its 6th birthday. Two giant pandas which were forced to leave their habitat by a devastating earthquake in 2008 will soon return home in late August. More than 60 pandas were homeless in the disaster and later adopted by zoos in other cities. [Photo/Xinhua]

The giant panda "Si Jia" plays in Yunnan Safari Park in Kunming, capital of Southwest China's Yunnan province, on Aug 12, 2012, on its 6th birthday. [Photo/Xinhua]