The whale shark, the largest fish in the sea, is a filter feeder, scooping up plankton and small fish with its wide mouth! Being the gentle giants they are, they'll sometimes allow swimmers to hitch a ride.
Whale sharks are the world's largest fish. One of the most notable facts about whale sharks is that they are the world's largest fish. At a maximum length of about 65 feet and weight of pounds, a whale shark's size rivals that of large whales