Cheng Yuet-ngor (Carrie Lam) , Chief Secretary for Administration of Hong Kong Special Administrative Region, poses for a photo with guests at a press conference for Hong Kong's giant panda Jia Jia setting to become world's oldest in South China's Hong Kong, July 28, 2015. Officially recognized as the "Oldest panda ever in captivity" and "Oldest Panda living in capativity" by Guinness World Records, Jia Jia celebrated her 37th birthday in Hong Kong Ocean Park along with three other pandas on Tuesday. (Xinhua/Lyu Xiaowei)