Told in a riddle format, with clues re: mammal behavior and anatomy, ocean habitat, name for young and groupings, movement, hunting, and echolocation this little reader offers excellent information on the dolphin. Full-color photos reveal only portions of the mammal, page by page, so as not to give away the  identity too easily.  In addition to reading comprehension and language practice, this title could be used for primary level research. Includes index, focus on specific vocabulary such as “teeth”, and a “Challenge” Word: “blowhole”