This project is an excerpt from ScienceWorks for Kids, Animals with Backbones, Grades 1-3, Evan-Moor. Item number: EMC854. All rights reserved except as here noted. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording or storing in any information storage and retrieval system or electronic on-line bulletin board, without prior written permission from Evan-Moor.