Dingding, a female panda, is seen in quarantine at the Bifengxia base of China Conservation and Research Center for Giant Pandas in Ya'an, southwest China's Sichuan Province, on April 26, 2019. The Moscow Zoo has made all preparations to host a pair of giant pandas from China for 15 years or longer in a scientific program, its General Director Svetlana Akulova has said. The zoo will receive Ruyi, a male panda, and Dingding, a female one, on April 29. (Xinhua/Xiao Yonghang)