Jersey Shore shark attacks of 1916 inspiration for "Jaws"—may be the lesser known bull shark." Biologists George A. Llano and Richard Ellis suggest that a bull shark could have been responsible for the fatal Jersey Shore attacks. Bull sharks swim from the ocean into freshwater rivers and streams and have attacked people around the world. In his book "Sharks: Attacks on Man" (1975), Llano writes, Ellis points out that the great white "is an oceanic species, and Schleisser's shark was caught in the ocean. To find it swimming in a tidal creek is, to say the least, unusual, and may even be impossible. The bull shark,
Jaws (film) the story was to change the cause of the shark's death from extensive wounds to a scuba tank explosion, as he felt audiences would respond better to a "big rousing ending". The director estimated the final script had a total of 27 scenes that were not in the book. Benchley had written "Jaws" after reading about sport fisherman Frank Mundus's capture of an enormous shark in 1964. According to Gottlieb, Quint was loosely based on Mundus, whose book "Sportfishing for Sharks" he read for research. Sackler came up with the backstory of Quint as a survivor of the World War