Get children thinking on sky, land, and sea animal migrations with this primer.Did you know that Arctic terns migrate farther than any other animal? During their migration journeys, gray whales can swim up to 12,000 miles and Emperor penguins walk about 125 miles over ice to reach their nesting grounds.Gail Gibbons explores the many reasons animals migrate using direct sentences, maps, infographics and illustrations. This nonfiction picture book features over 30 different species of mammals, birds, reptiles, insects and fish and is perfect for aspiring zookeepers and animal-lovers. James Doherty, Curator Emeritus, The New York Zoological Society is fully vetted for accuracy. With the Gail Gibbons series, which promotes active learning, good citizenship, and student leadership, this title is part of the Explore the World .