Giant pandas play after snow at Shenshuping base of China Conservation and Research Center for the Giant Panda in Wolong National Nature Reserve, southwest China's Sichuan Province, Dec. 17, 2020. (Xinhua/Jiang Hongjing)

A giant panda plays after snow at Shenshuping base of China Conservation and Research Center for the Giant Panda in Wolong National Nature Reserve, southwest China's Sichuan Province, Dec. 17, 2020. (Xinhua/Jiang Hongjing)

Giant pandas play after snow at Shenshuping base of China Conservation and Research Center for the Giant Panda in Wolong National Nature Reserve, southwest China's Sichuan Province, Dec. 17, 2020. (Xinhua/Jiang Hongjing)

Giant pandas play after snow at Shenshuping base of China Conservation and Research Center for the Giant Panda in Wolong National Nature Reserve, southwest China's Sichuan Province, Dec. 17, 2020. (Xinhua/Jiang Hongjing)

Giant pandas play after snow at Shenshuping base of China Conservation and Research Center for the Giant Panda in Wolong National Nature Reserve, southwest China's Sichuan Province, Dec. 17, 2020. (Xinhua/Jiang Hongjing)

Giant pandas play after snow at Shenshuping base of China Conservation and Research Center for the Giant Panda in Wolong National Nature Reserve, southwest China's Sichuan Province, Dec. 17, 2020. (Xinhua/Jiang Hongjing)