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 Letters , a group of scientists said they wanted to conduct a "formal analysis" to confirm the identity of the animal that made the print that will live on in history.

To complete their findings, the group used "clear anatomical landmarks" to compare the imprint to eight different rodent species.

They found, with 98.67% likelihood, that the hole was actually made by a squirrel -- an eastern grey squirrel specifically.

"This investigation underscores the challenges of attributing a trace to the tracemaker," the authors wrote.

It wouldn't be unexpected if the hole was in fact created by a squi

See Full Page