Lan Guibin (L), a 115-year-old woman, poses a photo with her six-year-old great-grandson, in Shanglin county of Guangxi Zhuang autonomous region, May 16, 2012. There are more than 60 centenarians in Shanglin county, about 0.125% of its total population. The county has picturesque natural scenery and high rates of forest cover. It has also a long-term tradition of respecting the elders. [Photo/Xinhua]

Lan Guixin's ninth daughter (L) prepares food for her mother, Shanglin county of Guangxi Zhuang autonomous region, May 16, 2012. [Photo/Xinhua]