This book about two male penguins raising a chick was a very highly contested book by people who have no concept of tolerance.
https://en.wikipedia.org/wiki/And_Tango_Makes_Three
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.[1] 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.
And Tango Makes Three has been mentioned in numerous censorship and culture war debates on same-sex marriage, adoption, and homosexuality in animals.[2] The American Library Association (ALA) reports that And Tango Makes Three was the most frequently challenged book from 2006 to 2010, and the second most frequently challenged in 2009.[2][3][4] It has also won multiple awards, including the ALA Notable Children's Book Nominee in 2006, the ASPCA Henry Bergh Book Award in 2005, and was named one of the Bank Street Best Books of the Year in 2006.[5]
Scholars of children's literature and education believe And Tango Makes Three is a good way to introduce the idea of diverse families to children. The book does not take a stance on same-sex marriage, but rather the validity of same-sex families.[6][/quote]