This book provides an introduction to the oceans, describing the topography of the ocean floor, plants and animals that live there, and threats to the biome.

Includes index. "Includes fun activities"--Cover.

Ocean zones -- The blue planet -- What is a fish? -- Fantastic fish -- Jellyfish -- Spectacular sharks -- Ocean giants -- Playful dolphins -- Gentle sea cows -- Soaring seabirds -- Ocean travelers -- Octopuses and squid -- Living together -- Down in the depths -- Life on the seabed -- Coral reefs -- Life in a coral reef -- Icy waters -- Penguin party -- Kingdom of kelp -- Exploring under water -- True or false? -- Which way? -- Who am I? -- Facts matchup.