Whales /
Laura Marsh.
- Washington, D.C. : National Geographic, c2010.
- 48 p. : col. ill., col. maps ; 23 cm.
- Great migrations .
- Marsh, Laura F. Great migrations. .
Includes bibliographical references and index.
Introduces sperm whales, including their different body parts, how they travel in groups, what they eat, and how they care for their young.