When spring comes, a baby calf gray whale and his mother head north to find food-all the way from Mexico to Alaska Every gray whale makes the trip, but it's a long way for a young calf to swim. Follow mother and baby on their four-month journey, as they jump, roll, pop up to see what's on the water's surface, and even confront a killer orca A biography on the last page introduces Nancy Simmons, curator of the Department of Mammology at the American Museum of Natural History and the expert who vetted the book. FREE ACTIVITIES & PUZZLES ONLINE AT: sterlingpublishing.com/kids/sterlingeventkits
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