A bus with an ad featuring Giant Panda drives on K street, in Washington D.C., capital of the United States, Sept. 21, 2015. 70 metrobuses with images of six endangered animals of China: Giant Panda, Red Panda, Snub-Nosed Monkey, Tibetan Antelope, Crested Ibis and Red-Crown Crane, will travel around Northwest Washington and parts of Maryland and Virginia for five weeks since Monday. Photo: Xinhua/Bao Dandan)
