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The Viral 'Chicago Rat Hole' Wasn't Actually Made by a Rat, Scientists Claim

Researchers used paleontological techniques to analyze the imprint and found it likely came from an eastern gray or fox squirrel, not a rat, in Chicago’s Roscoe Village.

Summary by Live Science
After researching the rodent indent, scientists are over 98% sure it came from a squirrel.

6 Articles

The Chicago viral "Rat Hole" is less rat splashes, more squirrel crashes. The researchers determined that it was probably a squirrel that had left a rodent-shaped print in Windy City concrete. Their new study, published on October 15 in Letters of Biology borrowed paleontological tools [...]

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Science broke the news in on Tuesday, October 14, 2025.
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