Siberian tigers climb a tree to catch a chicken at the Hengdaohezi Siberian tiger park in Hailin City, northeast China's Heilongjiang Province, Nov. 21, 2018. A chicken is tied on a tree by feeders as a prey for Siberian tigers. More than 400 Siberian tigers live in Hengdaohezi Siberian tiger park. (Xinhua/Wang Jianwei)