Amazing animal journeys /
At head of title: Great migrations
Laura Marsh.
- Washington, D.C. : National Geographic, c2010.
- 48 p. : col. ill., col. maps ; 23 cm.
- National Geographic kids. Level 3 .
"Great migrations"
Includes index.
Introduces animal migration and why some animals migrate, including the zebras in Botswana, the red crabs of Christmas Island, and the walruses in the Bering and Chukchi Seas.