Matching Pairs dolphins parts of bodyOnline version 11th grade dolphins by lyubanya9288 1 blowhole 2 pectoral fins 3 melon 4 peduncle 5 rostrum 6 fluke 7 dorsal fin 8 ear the two fins located on the sides of a fish (or marine mammal) a term used in anatomy for several kinds of hard, beak-like structures projecting out from the head or mouth of an animal the powerhouse of the body, located between the dorsal fin and tail flukes a structure located in the forehead of dolphins that is thought to play a key role in their echolocation abilities one of the two parts that a dolphin's tail is divided into the organ that enables hearing and (in mammals) body balance using the vestibular system the hole through which a dolphin breathes a fin located on the back of most marine and freshwater vertebrates within various taxa of the animal kingdom