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,
Friday the 13th (1980 film) would relax a bit, and the scare would be that much more effective. Because the killer, Mrs. Voorhees, appears onscreen only during the final scenes of the film, Manfredini had the job of creating a score that would represent the killer in her absence. Manfredini borrows from the 1975 film "Jaws", where the shark is likewise not seen for the majority of the film but the motif created by John Williams cued the audience to the shark's invisible menace. Sean S. Cunningham sought a chorus, but the budget would not allow it. While listening to a Krzysztof Penderecki piece of