Giant panda Meixiang, mother of Beibei, selects a Chinese knot during a traditional "Zhuazhou" ceremony for Beibei at National Zoological Park in Washington D.C., the United States, Aug. 20, 2016. To celebrate that Beibei has turned one year old, a series of celebration activities were held at the park. (Photo:Xinhua/Bao Dandan)
