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When Whales Cross the Sea: The Gray Whale Migration
When Whales Cross the Sea: The Gray Whale Migration
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When Whales Cross the Sea: The Gray Whale Migration

Invite readers to swim alongside a gray whale as she heads south on the longest migration journey of any mammal on Earth. When Whales Cross the Sea enchants readers with a story-like narrative while subtly teaching the role of migration in the whale's life cycle. Includes a "fast facts" page, a glossary, and realistic, text-match illustrations.

Age Level5-9 Years
Reading LevelGrades 2-3
Trim Size9 1/4 x 10 1/4
Page Count24
Paper Over Board
* Currently unavailable.


Booklist Online - J.B. Petty

"...written in informal storytelling fashion; facts are here but presented under the guise of a story. . . .Leonard’s vivid color double-page acrylic underwater paintings illustrate." - Booklist Online

March 10, 2015

Science Magazine - Carolyn Gramling

"Each year, gray whales undertake one of the longest migrations of any animal on Earth. They travel more than 8000 kilometers from the cold feeding grounds of the Arctic to birth their young in the warm waters off Mexico’s Baja Peninsula—and then head north again, babies in tow. It’s a mind-boggling journey, but this heartwarming book helps young readers ages 5 to 9 to grasp its scope by focusing on one mother-to-be. In brief snapshots accompanied by careful, realistic drawings, the book describes how she fattens up in Arctic waters for the long, harrowing trip; sticks close to the west coast of North America as she makes her way southward; births and nurses her baby; and prepares him to return north with her." - Science Magazine

December 4, 2015

NSTA Recommends - Judy Kraus, Science Teacher, Hyde Park Middle School

"Acrylic illustrations by Tom Leonard bring the gray whale to life on each page. The feeding process distinctly portrays the amphipods being filtered by the gray whale’s baleen and consumed. A map of the gray whale’s migration gives the reader a frame of reference for the whale’s incredible journey. Fast facts, a glossary, critical thinking questions, and additional resources are available at the conclusion of the text, providing extensions." - NSTA Recommends

March 3, 2015


School Library Connection - aren M. Smith, Head of Children’s Services, Livonia Public Library, MI

"With beautiful illustrations and simple text, this series about migration for the purpose of reproduction will make a nice classroom discussion-starter. . . .The format will appeal to all collections; however, the series is very readable and will be enjoyed by many children." - School Library Connection

January 1, 2016

Sharon Katz Cooper

Sharon Katz Cooper

Sharon Katz Cooper has written more than 25 books and articles for children. She has also written several books and articles for adults—but those are less fun. Several of her books have been finalists for the Association of Educational Publishers (EdPress) awards. Sharon lives in Fairfax, Virginia, with her husband, Jason, and her son, Reuven. She likes to cook, travel, wear hats, eat chocolate, and read other children’s books. In her spare time, she helps to design museum exhibits.

Go to the Author’s Page →