Journey from the coastline to the open waters and discover the amazing marine creatures that call our oceans home. The ocean is the largest habitat on Earth. It covers over seventy per cent of the planet's surface and is home over 200,000 animal species. In this book you will travel from the coastline to the ocean depths, visiting mudflats, tropical coral reefs and icy Arctic waters to discover some of the amazing marine creatures that call our oceans home.