These gross animals are fleshy, slimy, and deadly! Learn about bloodsucking fish, stinky skunks, scary goblin sharks and more. Discover how disgusting traits help these animals survive.

Take a tour of the ugly, smelly, and nasty with the World’s Grossest series—part of the UpDog Books™ collection. You’ll learn the world’s most revolting facts about history, animals, human bodies, and more. Check out each book’s disgusting diagram and compare icky topics to decide which is grosser.