DK Eyewitness Books: Fish is an exciting and informative guide to the fascinating world of fish. Striking color photographs of tropical fish, eels, seahorses, and more offer a unique "eyewitness" view of the natural history of fish, how they behave, and how they survive. See the lethal jaws of a piranha, a porcupine fish "puffing up," how a dogfish swims, growth rings on a fish scale, what a fish looked like 400 million years ago, and a fish with legs. Learn how a school stays together, why some fish swim upside down, how a stingray stings, and why fish need water to breathe, and much, much more!  The most trusted nonfiction series on the market, Eyewitness Books provide an in-depth, comprehensive look at their subjects with a unique integration of words and pictures.