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Dive deep into the world of sharks, the most fascinating and misunderstood marine animals on the planet, in this stunning new edition of the Shark Handbook. Did you now that a whale shark’s spots are as unique as a fingerprint? Or that sharks can go into a trance when flipped upside down? Jump into brand new facts about these fierce sea creatures. Dive deep into the world of sharks, the most fascinating and misunderstood marine animals on the planet, in this stunning new edition of the Shark Handbook. Featuring over 400 profiles of every shark in existence, from the first sharks living about 445 million years ago to the ones lurking in the ocean deep today! Starring spectacular, full-color photography that makes these jaw-dropping sharks come to life. This is the perfect gift for the shark enthusiast in your life! Dr. Greg Skomal, PhD, is an experienced aquarist and Marine Fisheries Biologist at Martha's Vineyard Fisheries, Division of Marine Fisheries, Massachusetts. He's been keeping saltwater aquariums since childhood and has shared his extensive knowledge with viewers of National Geographic, the Discovery Channel, NBC's Today, and other media.