石世
Shi Shi was taken from the wild in Sichuan, China in 1992. He was rehabilitated and sent to San Diego Zoo as the mate for Bai Yun in 1996. In 1999, Bai Yun was artificially inseminated with sperm from Shi Shi and Hua Mei was their offspring. It was eventually determined that he was much older than was originally assumed, and he was replaced by Gao Gao as Bai Yun's mate.