This book covers the way that all known types of eyes work, from their optics to the behaviour they guide. The ways that eyes sample the world in space and time are considered, and the evolutionary origins of eyes are discussed. This new edition incorporates discoveries made since the first edition published in 2001.

Explores the world of animal eyes, explaning how eyes work, why different animals have different types of eyes, and what each animal specifically uses them for.

How many lenses does a dragonfly’s eye have? Which is bigger, an eagle’s eye or a human’s? How many eyes does a scallop have? How do lizards keep their eyes wet? Animal eyes can be really strange and wonderful. How much do you know about the eyes of your animal friends? Find out more in this book. LearningIsland.com believes in the value of children practicing reading for 15 minutes every day. Our 15-Minute Books give children lots of fun, exciting choices to read, from classic stories, to mysteries, to books of knowledge. Many books are appropriate for hi-lo readers. Open the world of reading to a child by having them read for 15 minutes a day.

Introduces, in simple text and photographs, the eyes of crabs, fish, frogs, horseflies, starfish, cats, and geckos.

With this title, beginning readers discover animal eyes of all shapes and sizes. Featuring simple, informational text and colorful images even the most reluctant reader will be eager to learn!

Did you know sea scallops have up to 200 eyes? They can see from many sides! Young readers will discover this and other amazing facts about animal eyes in this title. Each spread has large, leveled text alongside vibrant photographs to help beginning readers learn about how different kinds of eyes help four unique animals. Additional features highlight the largest animal eyes and show off different pupil shapes. This title is sure to catch the eyes of young readers!

If you could have any animal's eyes, whose would you choose? What if you woke up one morning and your eyes weren't yours? What If You Had Animal Eyes? -- the next imaginative book in the What If You Had series -- explores what would happen if you looked in the mirror and saw a pair of animal eyes instead of your own! From the chameleon's eyes that can point in different directions, to the colossal squid's eyes that shine in the dark, discover what it would be like if you had these special eyes -- and find out why your eyes are just the right ones for you!