Photo NewsPeople visit the Lincoln Park Zoo’s Zoolights in Chicago, the United States December 18, 2019 - by IANS (191217) — CHICAGO, Dec. 17, 2019 (Xinhua) — People visit the Lincoln Park Zoo’s Zoolights in Chicago, the United States, on Dec. 16, 2019. Zoolights is an annual event to greet Christmas and the New Year. (Photo by Joel Lerner/Xinhua)