There's a Penguin in my Grey Poupon
From what I've been able to learn, the children's book pictured above is based on the true story of an unorthodox penguin family, currently living in the Central Park Zoo. I'm not sure where reality ends and fiction begins, but from what I've read; There were two male penguins who would cuddle like other penguin couples. One day they pushed an egg-shaped rock into their nest and started caring for it, so a zookeeper decided to give them a fertilized egg, which they hatched and raised into a daughter.
Apparently this book is in an Illinois school library, which the AP describes as being about twenty miles east of St Louis in the town of Shiloh. It seems that one particular little girl took the book home and when her mother got to the part "when the zookeeper said the two penguins must be in love", she stopped reading aloud and started complaining about the content.
According to the AP story, which is the first I've heard about this book, the school superintendent appointed a task force which recommended the book be moved to the shelves requiring parental permission, but she decided to ignore their suggestion and has left the book in the children's section. Also, it seems that a similar flap arose in a northwest Missouri school and the director of that facility checked with some animal experts, who told her that adoptions are quite common among penguins, so she moved the book to the non-fiction section of their library, where "there was less of a chance that the book would 'blindside' someone"
Therein, we might find the most civilized part of this whole story. The complaining mother from Illinois said that she "wasn't armed with pitchforks or anything. I innocently was seeking answers", plus she agrees with the superintendent that pulling the book would constitute censorship. The local DA says that moving the book could also be considered censorship. So, though it seems some people might be offended by non-sexual gay penguins, nobody appears to want the book completely removed.
Though, if you do click on one of the Amazon links, you will find that the book has been typecast by those who have purchased it.