In pics: Field Museum in Chicago, U.S.

A woman shows her children how the Pawnee, a tribe of Native Americans, grind corn at the Field Museum in Chicago, the United States, on Jan. 20, 2020. The Field Museum, also known as The Field Museum of Natural History, is a natural history museum in Chicago, and is one of the largest such museums in the world. (Photo by Joel Lerner/Xinhua)