Chicago's viral 'rat hole' wasn't a rat
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Three stories above the Field Museum’s exhibits, rows and rows of taxidermied chipmunks filled a tray in the museum’s mammal archives. Pointing to two of the oldest critters, mammalogist ...
As landmarks go, a rodent-shaped hole in a Chicago pavement is probably not the best of what the United States has to offer.
In general, evolution is a long, slow process of tiny changes passed down over generations, resulting in new adaptations and even new species over thousands or millions of years. But when living ...
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