Did you know that a dolphin can up jump more than 20 feet into the air? Or that they love to play underwater games with their dolphin friends? And I wonder if you knew that dolphins have a special power biosonar that helps them to know what's around them. These are just a few of the things you'll learn in Dolphins . This beautifully illustrated children's book features 10 pop-up dolphins in a variety of underwater settings along with fun dolphin facts throughout.