A delightfully silly and informative picture book from the author of Animal Zombies & Other Real-Life Monsters. Grown-ups expect kids to avoid all sorts of “rude” behaviors. But in nature, spits, burps, and toots can happen for surprisingly strategic reasons. When animals exhibit every gross habit—from toxic sneezes to deadly farts— they’re not aiming to act rude. They do what they can to survive. This book features the most dazzlingly disgusting creatures on planet Earth—indecent insects, repulsive reptiles, cute-yet-crude mammals, and more. You’ll also hear from scientists who are investigating what humans can learn from these bold behaviors. Prepare to be gobsmacked by good reasons for rudeness.