Includes bibliographical references (page 32) and index.
Contents:
A long journey -- Why migrate? -- Whale songs -- Hunting humpbacks -- Dangers along the way.
Summary:
"Explains what causes humpback whales to migrate. Beautiful photos, fact-filled text, and helpful infographics help readers learn all about the science behind this phenomenon as well as ways that people study or protect it"-- Provided by publisher.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.