Whose Eyes Are These

Written by Peg Hall

Illustrated by Ken Landmark

Whose Eyes Are These? A Look at Animal Eyes—Big, Round, and Narrow Written by Peg Hall Illustrated by Ken Landmark Content Advisor: Julie Dunlap, Ph.D. Reading Advisor: Lauren A. Liang, M.A. Literacy Education, University of Minnesota Minneapolis, Minnesota

Minneapol is, Minnesota

Editor: Lisa Morris Kee Designer: Melissa Voda Page production: The Design Lab The illustrations in this book were prepared digitally. Copyright © 2003 by Picture Window Books. All rights reserved. No part of this book may be reproduced without written permission from the publisher. The publisher takes no responsibility for the use of any of the materials or methods described in this book, nor for the products thereof. Printed in the United States of America. 1 2 3 4 5 6 08 07 06 05 04 03 Library of Congress Cataloging-in-Publication Data Hall, Peg. Whose eyes are these? : a look at animal eyes—big, round, and narrow/ written by Peg Hall; illustrated by Ken Landmark. p. cm. — (Whose is it?) Summary: Examines a variety of animal eyes, noting how they look different and function in different ways. ISBN 1-4048-0005-0 (lib. bdg. : alk. Paper) 1. Eye—Juvenile literature. [1. Eye. 2. Animals.] I. Landmark, Ken, ill. II. Title. QL949 .H28 2003 573.8'8—dc21 2002005778

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Open your eyes and see who’s who. Look closely at an animal's eyes. Eyes can be big or small. Eyes can be close together or far apart. Eyes can tell you how an animal finds food or how it stays safe from its enemies. Some eyes shine in the dark. Other eyes work like telescopes to make small things look bigger. Eyes don't all look alike, because they don't all work alike. Can you spy whose eyes are whose? Look i n the back for mo re fun facts about eyes.

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This is a zebra’s eye. The zebra has eyes on the sides of its head. This lets the zebra spot danger from both sides without turning to look.

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s zebra’s eye A : t c a f n Fu alert. Even are always s it ebra lower z e h t n e h w drink, it is r o t a e o t head for signs of g in k o lo l il t s

s prey? Who e e y r o f es g n are i these, look

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These are a tiger’s eyes. Like the eyes of many hunters, a tiger’s eyes face forward. It is more important for the tiger to see the prey running in front of it than to look behind it for enemies.

r t: Tige c a f t. Fun t nigh a e n i h eyes s sa ye ha e h c Ea r that e y a l l a speci mirror a e k i l t acts onligh o m s ake and m it. off of e c n bou r al laye i c e p The s a tiger, e h t s help e er, se t n u h . night e dark h t n i r bette

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hese that look t e r a so s e str y e an e s ge ho W ?

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These are a housefly’s eyes. Like other insects, the fly has compound eyes. A compound eye is made of lots of tiny lenses joined together. Compound eyes help the fly see moving things in almost every direction at once. A fly can see your hand coming up behind it. That’s why it’s so hard to catch.

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These are a crocodile’s eyes. The eyes of a crocodile sit on the top of its head. The crocodile can hide underwater and hunt for food with only its eyes and nose showing.

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These are a ghost crab’s eyes. A ghost crab's eyes sit on stems. The crab hides in the sand with only its eyes sticking up. The eye stems bend and wave around, letting each eye look in a different direction.

Fun fa ct: A ghost comp crab ound has e y es jus fly. Se t like a eing t h ings m above ove and b e hind it the cr helps ab ca tch its food.

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is this, never blin e y e king se o h ? W

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This is a snake’s eye. A snake never blinks or closes its eyes, because it has no eyelids. Instead, the eyes are protected by clear covers, like built-in safety goggles.

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This is an eagle’s eye. An eagle’s eyeballs are shaped like tubes. They work like telescopes and help the eagle see things that are very far away. Even when it is flying hundreds of feet above the ground, an eagle can see a tiny mouse far below.

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These are your eyes! Just like other animals, you use your eyes for finding things and for staying safe. Your eyes also tell others how you feel. Your eyes can look sad or angry or happy. They can wink with a joke or blink with surprise. Are your eyes ever sleepy? Do they ever snap shut?

lack b e h ct: T r Fun fa f you o s t r e pa . middl pupils r u o ur are y to yo eyes n i t h let lig dark, Pupils s i t i When . s ig e y e row b g s l i pup t. your re ligh o m t in and le t, the h g i r it is b d When all an m s t ge pupils light. s s e l let in

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Just for Fun Whose eyes are whose? Read the riddles and point to the answers. My eyes are always watching for danger. Who am I? I am a snake.

I can see your hand coming up behind me. Who am I? I am a z

ebra.

I am an eagle.

I am a tiger.

I am a fly.

My eyes shine in the dark. Who am I?

My eyes never blink. Who am I?

My eyes work like telescopes. Who am I? 21

Fun Facts About Eyes SEEING IN COLOR Animals do not all see colors in the same way. Kangaroos cannot see different colors at all. Giraffes can see a few colors. Apes see the same number of colors that most people see. Many butterflies probably see even more colors than apes and people do. UNDERWATER EYES Many animals that hunt underwater have eyes with very large pupils. That’s because it can get dark in deep water, and large pupils let in more light. EYES THAT TURN A chameleon’s large eyes stick up and turn in all directions. With each eye moving in a different direction, the chameleon can see in almost all directions at once! DO RHINOS NEED GLASSES? A rhinoceros does not see very well. Like some humans who wear glasses, the rhino is near sighted. That means it sees things that are near but has trouble seeing things that are far away. SEEING SPOTS Worms and starfish have eyespots instead of eyeballs. Eyespots let these animals tell the difference between light and dark, but they can’t see anything else.

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PUT A LID ON IT Most birds have three eyelids. Like you, they have one eyelid on top and one on the bottom. Their extra eyelid moves sideways. That’s the one they use to blink. Birds close their top and bottom lids only when they sleep.

Word s to Know compound eyes Compound eyes are made up of lots of lenses. They are very good for seeing fast-moving things. lens A lens is a clear part of the eye that covers the pupil. It helps you see objects clearly. prey An animal that is hunted and eaten by another animal is prey. protect To protect means to keep safe. pupil The pupil is the black, middle part of the eye. It gets bigger or smaller to let light in or keep it out. shed To shed means to get rid of. A snake sheds, or gets rid of, its skin. telescope A telescope is a special tube that you hold up to your eye to make faraway things look closer.

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To Learn More AT THE LIBRARY

ON THE WEB

Fowler, Allan. How Animals See Things.

Lincoln Park Zoo

New York: Children’s Press, 1998.

http://www.lpzoo.com

Franco, Betsy. Why the Frog Has Big Eyes. San Diego: Harcourt, 2000.

Explore the animals at the Lincoln Park Zoo. San Diego Zoo

Gordon, Sharon. Seeing. New York:

http://www.sandiegozoo.org

Children’s Press, 2001.

Learn about animals and their habitats.

Hartley, Karen, Chris MacRo, and Philip Taylor. Seeing in Living Things. Chicago:

Want to learn more about animal eyes?

Heinemann Library, 2000.

Visit FACT HOUND at http://www.facthound.com

Index apes, 22

crocodile, 11–12

housefly, 9–10, 21

snake, 15–16, 21

birds, 23

eagle, 17–18, 21

insects, 10

starfish, 22

butterflies, 22

eyelids, 16, 23

kangaroo, 22

telescope, 3, 18, 21, 23

chameleon, 22

eyespots, 22

prey, 7, 8

tiger, 7–8, 21

compound eyes, 10,

ghost crab, 13–14

pupils, 20, 22, 23

worms, 22

giraffe, 22

rhinoceros, 22

zebra, 4–6, 21

14, 23

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