What's the scoop behind all the mucus? Did you know snails build roads like engineers and go undercover in camouflage like top secret spies? Did you know they can be smaller than a seed or bigger than a grown-up's hand? Cartoonist Kevin McCloskey is back with his trademark mixture of real-life science, lovely art, and infectious hilarity for the slimiest book in his acclaimed Giggle and Learn series, praised by the New York Times as "a winning combination of facts and gross-out fun."