Panda Birth

July 30, 2012 - 2:35 AM
FILE - In a Dec. 21, 2007 file photo four-month-old giant panda cub Zhen Zhen, left, leans against mother Bai Yun, right, in their enclosure at the San Diego Zoo during a media preview in San Diego. San Diego Zoo officials Sunday July 29, 2012 announced that the 20-year-old Bai Yun has given birth to her sixth cub aat the zoo. (AP Photo/Denis Poroy/file)