What types of dolphins are there?
 1 Rippled dolphin. 2 Bottlenose dolphin. 3 Atlantic spotted dolphins. 4 Dusky dolphin. 5 Killer whale (Orca). 6 False killer whale. 7 Short-beaked common dolphin. 8 Pacific white-sided dolphin. 9 Spinner dolphin. 10 Amazon river dolphin (Boto). 