SHELLEYEWITNESS BK - Eyewitness Books Author:Dorling Kindersley Ltd Full-color photos. "Arthur showcases varieties of shelled mollusks, echinoderms, crustaceans, turtles, tortoises, and terrapins, illustrating how shells and pearls form and comparing species that inhabit such different environments as freshwater bodies and coral reefs. Stunning close-up photos and detailed captions will attract browsers and rese... more »archers looking for information on this popular subject."--(starred) Booklist. « less