The San Diego Zoo held an early morning birthday party for their giant panda Yun Zi's second birthday on Friday August 5, 2011 by presenting him with a specially made ice cake (panda's love ice.) Yun Zi was born on August 5, 2009 and was the fifth cub born from his mother Bai Yun and fourth cub to his father Gao Gao. Yun Zi was conceived through natural mating. His name, meaning "Son of Cloud" in Chinese was chosen from a list of 6,300 names submitted by fans of the San Diego Zoo, but wasn't revealed until November 17, 2009, 104 days after his original birth date. Several months later Yun Zi made his first public appearance at the zoo on January 7, 2010 to a cavalcade of press and adoring fans.