"Packed full of cool photos and fascinating facts!"--Cover.

Includes index, glossary, and fact boxes

Coral polyps -- Sea anemone -- Sea urchin -- Starfish -- Jellyfish -- Sea slug -- Shellfish -- Octopus -- Peacock mantis shrimp -- Crab -- Lobster -- Mackerel -- Coral fish -- Seahorse -- Ray -- Shark -- Marine iguana -- Sea snake -- Turtle -- Saltwater crocodile -- Penguin -- Albatross -- Sea otter -- Seal -- Walrus -- Dolphin -- Sperm whale -- Blue whale.