Includes bibliographical references and index.

"There are millions of animals on this planet. Some fly with feathers, others swim under the sea. We use classification to keep them all straight. Follow along with easy-to-understand content tied to the curriculum of upper-elementary and middle school students written at a 2nd to 3rd grade reading level. Dyslexia-friendly font and design make learning accessible and a recap at the end promotes checking for understanding to aid with comprehension. It's key biology curriculum made approachable for all"--,Provided by publisher.