Dolphins are some cute mammals that like to play. Did you know that dolphins are very smart and have great memory? If you don't believe me get a whiff of this true story: One time a man visited a place where people rescue sea animals. Then a dolphin got his a attention. He came towards it and when the dolphin saw him, it threw him it's favorite toy, a red ring. The man threw the ring back to the dolphin and the dolphin hit it back. They played a day and when it began getting dark, the man left. Three years later he came back. As he walked passed the same dolphin he played with three years ago, the dolphin tossed him the ring. See what I mean? And do you want proof that dolphins are smart? Listen to this: Once a lady fell out of the ship she was riding in. Nobody saw her fall. She called for help but no one heard her when the ship was out of sight, she thought she was done for. Then, a dolphin pushed her with his head all the way back to shore. The dolphin had saved her. Dolphins eat fish and krill. They use echolocation to find their food because they have poor eyesight. They make a clicking sound in the water that bounces off things. The communicate with a high pitched moaning sound. Dolphins are some nice animals!