Includes index.

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.

Readers will learn about the ocean and discovering what life is like in the depths of the ocean.