Panda Bears

This photo released by Zoo Atlanta, shows giant panda cub Mei Lan, left, playing with her mother Lun Lun in the panda hammock at Zoo Atlanta, Ga. on Wednesday March 28, 2007. Mei Lan, the only giant panda cub born at a U.S. zoo in 2006, began her public appearances in January. Wednesday was the first day zoo officials began letting her outside. (AP Photo/Zoo Atlanta)