"While the public attributed the mark to a brown rat, no formal analysis had been conducted to confirm its identity," ...

A new study finds Chicago’s viral "rat hole" was likely made by an eastern gray squirrel. Scientists analyzed measurements from eight local rodent species and ruled out the brown rat. The imprint, ...

Was the great Chicago rat hole of 2024 actually made by a rat? Researchers who looked at the imprint in the sidewalk slab say probably not!

Chicago’s viral ‘Rat Hole’ is less rat splat, more squirrel squish. Researchers determined it was probably a squirrel that left a rodent-shaped impression in the concrete of the Windy City. Their new ...

A statistical analysis of an infamous indentation in a sidewalk suggested a 99 percent likelihood that another rodent made the mark. To put the rodent-shaped impression into context, a team of ...

Rats are common where food, water, and shelter are easy to find. Signs of rat activity in your yard include holes 2 to 4 inches in diameter, rat droppings, and partially eaten fruits and vegetables in ...

Few city rats have left their mark on the public consciousness — and the urban landscape — like the one responsible for the famed "Chicago rat hole."But the Windy City's "rat hole" may not be what it ...

CHICAGO (WGN) — A new study suggests that Chicago’s iconic sidewalk rat hole is likely not the imprint of a rat at all. In an article published by The Royal Society, a research team compared and ...