And Tango makes three

At New York City's Central Park Zoo, two male penguins fall in love and start a family by taking turns sitting on an abandoned egg until it hatches. Based on a true story.

Bibliographic Details
Main Authors: Richardson, Justin 1963- (Author), Parnell, Peter (Author)
Other Authors: Cole, Henry 1955- (Illustrator)
Format: Book
Published: New York Simon & Schuster Books for Young Readers [2015]
Edition:10th anniversary edition.