A noted zoologist teams up with a playful illustrator to present a fun, fact-filled guide to the fascinating (if not fragrant) world of poop across species.

Hippos navigate by it, sloths keep in touch through it, dung beetles eat it . . . and most grownups would rather not to mention it. Meanwhile, scientists who study animal feces find out all sorts of things, such as how many insects a bat eats or just what technique a T. rex used to devour a triceratops 70 million years ago. However you look at it, poop is the quintessential prototype for recycling and probably the most useful stuff on earth. Take a peek at POOP and find out all you need to know — what it's for, where it goes, and how much we can learn from it.