Visitors watch Giant panda An An enjoys its food at the Ocean Park in Hong Kong, May 27, 2016. Born in 1978, Jia Jia achieved two Guinness World Records titles last year as being the oldest panda ever in captivity and the oldest panda living in captivity, while 30-year-old An An became the world's second oldest male panda under human care. (Photo/Xinhua)
