Splash, Bubbles, and Dunk find a shark tooth in Reeftown. Does that mean there's a SHARK in Reeftown? They're pretty sure sharks are big and mean and scary, until they meet a new friend who opens their eyes to the many different types of sharks in our diverse ocean. In the series of books based on The Jim Henson Company's Splash and Bubbles on PBS Kids, Splash, Bubbles, and their friends explore the world's undersea habitats, make new friends, and learn about the many different ways life looks and lives in the ocean, celebrating the importance of diversity along the way.