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Find out what makes a fish a fish. According to scientist, some "fish," such as starfish, cuttlefish and jellyfish, are not really fish at all. Examine the difference between invertebrates and vertebrates, and why this makes some fish NOT fish.

Text by Elizabeth Cook
Photography by Robert Yin
48 pages
Guided Reading Level: Q

The Underwater Encounters series delivers intriguing facts and first-hand accounts as told by an adventurous and well-respected author/diver, Elizabeth Cook, and the acclaimed underwater photographer, Robert Yin.  Readers come face-to-face with some of the most interesting animals imaginable - directly from the depths of the world's mysterious seas.  Students love to learn how ocean animals hunt, hide, and communicate.