Written by: Kathy Tekiela.

Photography by: Stan Tekiela.

Butts are funny — especially to kids. Award-winning wildlife photographer Stan Tekiela takes advantage of this giggle-worthy topic, using it as an educational bridge to introduce children to facts about animals. Readers are shown an animal’s behind and asked to guess “whose butt”? Then it’s time to turn the page and find out the answer! Regardless of your age, you’re sure to laugh while you learn, so get to the bottom of animal butts with this wonderful picture book. (From GoodReads.)

Credit: Facebook discussion on Inappropriate / Gross Out / Butt storytime books.