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A mock alligator appears to be crawling out of a mock manhole during a promotion of free cajun food being served from a History Channel food truck in New York on Tuesday, March 29, 2011. February 9 has been designated "Alligator in the Sewer Day" commemorating the 1935 discovery of an alligator in the sewer at 123rd Street in New York. (�� Richard B. Levine) (Photo by Richard Levine/Corbis via Getty Images)

A mock alligator appears to be crawling out of a mock manhole during a promotion of free cajun food being served from a History Channel food truck in New York on Tuesday, March 29, 2011. February 9 has been designated "Alligator in the Sewer Day" commemorating the 1935 discovery of an alligator in the sewer at 123rd Street in New York. (�� Richard B. Levine) (Photo by Richard Levine/Corbis via Getty Images)