U.S.-born male giant panda Bei Bei is seen after his return from the United States at the Bifengxia Panda Base of the China Conservation and Research Center for the Giant Panda in Ya'an, southwest China's Sichuan Province, Nov. 21, 2019. Giant panda Bei Bei, who was born and raised at the Smithsonian's National Zoo in Washington D.C. for more than four years, departed for the next chapter of his life in China on Tuesday. Bei Bei will officially meet the public in China after one month of quarantine. (Xinhua/Xue Yubin)