You see some strange things on public transportation, but this may be one of the strangest: A woman brought a 2-foot-long alligator on a Chicago "L" train earlier this month, the Chicago Tribune reports. Police found the gator underneath an escalator at Chicago's O'Hare airport, then traced pictures of the woman and the gator found on social media to trace her route. They figured out that the strange duo rode the Blue Line to O'Hare in the wee hours of Nov. 1; security footage shows that when the woman left the airport, she no longer had the alligator with her. The CTA is now on the hunt for the woman, who could face a fine of up to $1,000. The gator is in the care of the Chicago Herpetological Society.