This richly illustrated encyclopedia series sets sail into new waters with an exploration of the world's oceans and seas. Discover the geography, geology, and ecology that lies beneath the waves--from the deepest trench to the longest mountain range on Earth, and from the world's largest animal (the blue whale) to some of the smallest plankton. Using 3-D computer illustrations that present a level of detail you simply can't find elsewhere, this book takes you on a world tour of the waters that cover 70 percent of our planet. You will see the fish, invertebrates, and other animals that call the ocean home and learn how their anatomy and behavior is adapted to deal with a watery habitat. You can discover what survives in the frozen Arctic Ocean, as well as see coral reefs teeming with life. Plus, you can find out the science of the seas: How do waves work? What are tsunamis? How do tides provide electricity? How can people help marine conservation? There are also all the facts and figures you could ever want about our seas. Did you know that for every bathtub-sized amount of saltwater on Earth, there are just 4 teaspoons of freshwater? Or that the Pacific Ocean is so large, all the world's continents could fit into it? From coasts and glaciers to the depths of the Mid-Atlantic Ridge, Ocean! is a truly revealing study of our underwater world.