And Tango Makes Three is a children's book written by Peter Parnell and Justin Richardson and illustrated by Henry Cole which was published in 2005. The book tells the story of two male penguins, Roy and Silo, who create a family together. With the help of the zookeeper, Mr. Gramsay, Roy and Silo are given an egg which they help hatch. The female chick, that completes their family, is consequently named "Tango" by the zookeepers. The book was based on the true story of Roy and Silo, two male chinstrap penguins who fell in love in New York's Central Park Zoo.