Bull shark being able to tolerate the high salinity of marine water. Since bull sharks often dwell in very shallow waters, are found in many types of habitats, are territorial by nature, and have virtually no tolerance for provocation, they may be more dangerous to humans than any other species of shark, and along with the tiger shark and great white shark, are among the three shark species most likely to bite humans. One or several bull sharks may have been responsible for the Jersey Shore shark attacks of 1916, which were the inspiration for Peter Benchley's novel "Jaws". The speculation of
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