River otters /
by Betsy Rathburn.
- pages cm.
- Blastoff! readers: North American animals .
- Blastoff! readers. 3, North American animals. .
Includes bibliographical references and index.
What are river otters? -- Otters in water -- Foods and foes -- Otter pups.
"Simple text and full-color photography introduce beginning readers to river otters. Developed by literacy experts for students in kindergarten through third grade"--