This is one of the funniest children's books I've read in a while. It is all about animals bootys. Older toddlers to kindergarteners will laugh hysterically at all the slang words for the backside. My favorite one was duck bill platypus gluteus maximus. That stopped me cold in the middle of my story time. I had to put the book down so I could laugh. I suppose this is why I should pre-read the books. :-)