Jumping orca with raised flipper
The pectoral fins of the whales are referred to as flippers (more rarely also called the pectoral fin ). In English, the slang term is usually avoided, whereas it is more common in German.
The flippers contain bones in contrast to the fluke , the tail fin of the whales. Anatomically , the flipper corresponds to the front leg of land mammals .
The pectoral fins of the sea turtles are also known as flippers.