Gu Gu (Chinese: 古古) is a male giant panda at the Beijing Zoo, born at the Wolong National Nature Reserve. He has received international attention for incidents in which he attacked zoo visitors who trespassed into his enclosure.
On September 19, 2006, Six year old Gu Gu bit a Chinese man who had jumped into his enclosure and tried to hug him. Zhang Xinyan, a migrant worker from the central Henan province, had drank several beers before arriving at the zoo. He cleared the railing around the enclosure, managed to approach the panda undetected, and moved to hug him. The bear bit Zhang on both legs. In an attempt to stop the attack, Zhang said that he "...bit the panda on its back but its fur was too thick." Zoo officials sedated Gu Gu by spraying him with water. Zhang was hospitalized after the incident. The zoo reported that besides a one and a half day loss of appetite, Gu Gu was unharmed.