FILE - This Thursday Nov. 12, 2009 image provided by the San Diego Zoo shows the zoo's panda cub during a physical exam in San Diego. Zoo officials on Tuesday, Nov. 17, 2009 announced that the 3-month-old black-and-white ball of fur will be called Yun Zi (YUN ZIH), which is Chinese for "Son of Cloud." (AP Photo/San Diego Zoo, Ken Bohn)