Beijing-born giant panda Ya Ya returned to China as scheduled on Thursday after a 20-year stay at the Memphis Zoo in the U.S. state of Tennessee, according to Chinese media, after public concern mounted over her health conditions due to possible neglect.The 22-year-old female giant panda arrived at Shanghai Pudong Airport after a nearly 16-hour flight on a cargo plane. Ya Ya will be quarantined in the city before being transported to Beijing Zoo, the media reported.In many images and videos that have gone viral, Ya Ya appeared to be underweight and with a skin condition, sparking speculatio…READ FULL ARTICLE