A Manchurian tiger is kept inside a cage at the Jiangtian Zoo, the first zoo in Qidong, a county-level city in Nantong, Jiangsu province. [Photo/WeChat account of Qidong Jiangtian Ecological Park]

A sea lion is being trained to perform for visitors. [Photo/WeChat account of Qidong Jiangtian Ecological Park]

A lion roars in its cage at the Jiangtian Zoo, located in Huilong town, Qidong. [Photo/WeChat account of Qidong Jiangtian Ecological Park]