Giant panda Youyou walks on snow-covered ground at Yabuli Giant Panda House in the ski resort of Yabuli in northeast China's Heilongjiang Province, Nov. 12, 2018. Female Sijia, 12, and Youyou, a ten-year-old male now, came from Sichuan Province thousands of miles away to Yabuli in 2016. (Xinhua/Cao Jiyang)