Discover More: oceans is for every child that is fascinated by sharks, tsunamis, palm-fringed beaches, coral reefs and superstrange-looking deep-sea fish. We know more about Mars than we do about the oceans that cover 70 percent of Earth's surface. Beautiful original photographs combined with up-to-the-minute factual knowledge from marine biologists, conservationists, and explorers make this book a genuine contribution to our understanding of the world's last wilderness.