The "Chicago Rat Hole" captured hearts in Chicago and on social media last year. Researchers analyzed the anatomical ...

After existing quietly for over two decades on a Roscoe Village sidewalk in Chicago, a rodent-shaped indent became an internet sensation in 2024, when a tweet by comedian and writer, Winslow Dumaine, ...

Scientists who inspected Chicago’s famous “rat hole” now say the imprint was not actually made by a rat, calling it a case of “mistaken identity.” In an analysis published in the journal Biology ...