The Chicago Rat Hole Was Not Made by a Rat

A statistical analysis of an infamous indentation in a sidewalk suggested a 99 percent likelihood that another rodent made the mark.

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Toronto’s Subway Deer Enigma Unmasked With DNA Analysis

It took nearly 50 years to work out the identity of a caribou-like fossil first discovered by construction workers.

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Early Humans Settled in Cities. Bedbugs Followed Them.

A new study suggests that bedbugs were the first urban pest, and their population thrived in that environment. For the bloodsucking insects, it’s been the perfect 13,000-year-long marriage.

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