Three-year-old giant panda Bao Bao took off from Washington, D.C., on Tuesday for a 16-hour flight to Chengdu, China. Bao Bao was born at the National Zoo on Aug. 23, 2013, and is moving to China as part of a cooperative breeding program. Her older brother, Tai Shan, was the first panda to make the journey in 2010.