Some animals in the ocean are large, like the leatherback sea turtle. Some are tiny, like the leafy sea dragon. But all those featured in this book are champions of something! The great white shark is crowned the "champion of chomping," and the amazing giant Pacific octopus is the "champion of challenges." How did they earn these nicknames? That's what readers find out in this engaging, fact-filled book! Full-color photographs of these ocean animals complement the fun science information, including curriculum-supporting topics of adaptations and habitats.