A picture-packed guide to the extraordinary shark family Did you know that sharks first appeared in the oceans 200 million years before the dinosaurs, and that they have an electrical sixth sense that helps them locate their prey? How dangerous is a great white shark? Can a whale shark really grow as big as a city bus? Find out all the answers in Eyewitness Shark, and many more weird and wonderful facts. Discover where they live, why they are hunted, and what can be done to protect them. The book even takes you inside a shark to learn how it eats and breathes. It explains, too, how they can swim so fast and how different tail shapes affect the way each species moves. You'll see for yourself how a lemon shark is born, and which looks stranger, the hammerhead or the horn shark. Learn, too, about their relatives, the manta rays and skates. Part of the best-selling DK Eyewitness series, which is now getting an exciting makeover, this popular title has been reinvigorated for the next generation of information-seekers and stay-at-home explorers, with a fresh new look, new photographs, updated information, and a new "eyewitness feature—fascinating first-hand accounts from experts in the field.