Oceans cover 70 percent of Earth and make up the biggest biome on the planet! This title maps the territories and migration routes of animals in ocean, coral reef, and estuary biomes. Readers are asked to engage in a biome mapping activity to help reinforce understanding of the fragility of these water habitats.

Includes index.

What are oceans? -- Oceans of the world -- The tropical Pacific Ocean -- The tropical Atlantic Ocean -- The Red Sea -- The temperate Pacific Ocean -- The temperate Atlantic Ocean -- The Bering Sea -- The temperate Indian Ocean -- The Caspian Sea -- The Arctic Ocean -- The Southern Ocean -- Oceans in danger.