<p>Did you know the tongue of a blue whale can weigh as much as an elephant? Celebrated children's author Diane Swanson takes young readers into the exciting underwater world of whales with fun facts and colorful photographs. Tales of killer whales traveling as fast as race horses and belugas singing like canaries will captivate children. They will discover where whales swim, what they eat, and why they leap and splash.</p><p><i>About the series:</i> Each book in the <b>Welcome to the World of Series</b> introduces children to wildlife through color photographs, lively description and amazing facts.</p>