This exciting introduction to oceans is brimming with curious creatures, beautiful homes, and incredible adventures. From the spectacular seabirds soaring over Earth's vast oceans, to the tiny creatures lurking on the ocean floor, get ready for an adventure into the great unknown... Dive in and explore forgotten shipwrecks, swim with fantastic fish, and other awesome underwater animals, and weave your way through secret deepsea homes. You'll travel back in time to meet plundering pirates and explorers who changed the course of history, then it's time to learn about lots of very important underwater jobs and how you can help to protect Earth's precious oceans.

Includes index.

Earth's oceans / Blue planet -- The oceans -- Oceans apart -- Salty seas -- The water cycle -- Ancient oceans -- The ocean floor -- Incredible islands -- Waves -- Currents -- Tides -- Coastal erosion -- Danger zone -- Meet the animals / Small wonders -- Spectacular sponges -- Jazzy jellies -- Shining stars -- Spectacular shells -- Snappy crabs -- Brilliant bivalves -- Super squid -- Enormous octopus -- Sea snails and slugs -- Marine reptiles -- Terrific turtles -- Fishy friends -- Fabulous fish -- Superb seahorses -- Leafy sea dragons -- Sleek sharks -- Rays and skates -- Diving dolphins -- Wonderful whales -- Big blue whale -- Unicorn of the sea -- Walruses, seals, and sea lions -- Playful penguins -- Soaring seabirds -- Ocean environments / Seashores -- Coastal habitats -- Mangroves -- Seagrass meadows -- Kelp forests -- Coral reefs -- Coral-reef life -- Natural reefs -- Artificial reefs -- Icy waters -- Arctic waters -- Antarctic waters -- In the zone -- Sunlight zone -- Twilight zone -- Midnight zone -- Abyssal zone -- Living in the ocean / Family matters -- Turtle power -- Riding the waves -- Swimming together -- Perfect partners -- Ocean wanderers -- Whale adventure -- Arctic food web -- Amazing algae -- Marine hunters -- Self defense -- Masters of disguise -- Natural glow -- Ocean of sounds -- Super sonar -- Smart sea creatures -- Ocean adventures / Early exploration -- Silk road of the sea - Ocean exploration -- Science at sea -- Ships ahoy! -- Searching for shipwrecks -- Terrors of the sea -- Myths and legends -- Exploring machines -- Ocean equipment -- Mapping the ocean -- Deep discoveries -- Exploring the Mariana Trench -- Underwater mountains -- Inside a sinkhole -- Ocean heroes -- Sports records -- Ocean and us / Fun at sea -- Beach vacations -- Living underwater -- Work on the waves -- Ocean rescue -- Sea supplies - Fishy business -- Ocean hazards -- Climate change -- Plastic problems -- Saving our seas -- Journey into the unknown.