Why is the giant panda called Yao Man?

Yao Man was born on September 27th, 29 in Bifengxia Base, Ya 'an, China Giant Panda Protection and Research Center. My mother is "Dong Dong", my father is "Lu Lu" and I have a twin sister "Yao Xin". It was named Yao Man by China Giant Panda Protection Research Center. Yao Man, female giant panda, pedigree number 759.