ALT A bridge over the Sangamon River with green-brown water and exposed, dry river banks.

ALT A variety of household batteries.

ALT Several invasive carp under the surface of the water with their mouths open. At the bottom, there is text that says, "We're Hiring", and, "go.illinois.edu/prijobs".

ALT A person holding an Eastern black rail. At the bottom, there is text that reads, "we're hiring," and, "go.illinois.edu/prijobs".

ALT Aerial view of Montrose Beach jetty in winter ice and snow accumulating over the sandy shore and northern Chicago neighborhoods in the distance.

ALT A group of individuals on a summer day standing in front of a river, smiling, and facing the camera. At the bottom center, there's a white box with text that says, "go.illinois.edu/prijobs" and "we're hiring."

ALT Trees during wintertime with no leaves and a gray sky.

ALT A person holding a yellow perch with two hands. At the bottom, text says, "go.illinois.edu/prijobs," and, "we're hiring."

ALT The cover of "Archaeology of Illinois: The Deep History of the Prairie State"

ALT The inside spread of the book showing text on the left and a diagram of points/arrowheads on the right.

ALT A close-up of the inside pages of the book showing text and diagrams of precolonial shelters.