The worlds oceans cover 70 percent of the earths surface, but how much do you really know about them?Explore one of the most fascinating habitats on Earth! From sharks the size of a school bus to blind fish that glow in the darkest depths of the sea, the ocean is home to many fascinating creatures. Meet amazing wildlife and marvel at natural phenomena, such as colourful coral reefs. Series Description Discover the most unique habitats in the world with this guides to our planet. Packed with fascinating facts about everything from Emperor penguins to cacti and camels, this series is a must for every young explorer. From deserts and polar lands to rainforests and oceans, this fabulous book takes an in-depth look at different ecosystems around the world.