Ages 7 to 14 years. This book provides children with a fascinating description of two of the most interesting fish species on Earth. Beautiful full-colour photographs and concise text help children discover how these animals with skeletons made of cartilage move through water and how they protect themselves from other animals in the oceans. Other topics include: where in oceans skates and rays live; the differences between the bodies of skates and rays; how skates and rays hunt and what they eat.