One of the most famous Urban Legends warns people of alligators in the sewers of New York City.

Apparently wealthy residents often return home from sunshine holidays in Florida with baby alligators as pets. When they grow to large and are no longer wanted, residents simply flush them down the toilet and into the sewer system where they can breed.

Because of the lack of sunlight it is believed the alligators have become blind and are albino white, creating a frightening image for anybody who believe albino alligators are alive and breeding under the man hole covers of Manhattan.