Unlike the vicious, man-eating monster that was popularized by the movie, Jaws, sharks don't usually attack humans. As a matter of fact, in 2006, only 62 shark attacks were reported worldwide. Among these 62 attacks, only 5 were fatal. Most of the recorded shark attacks happened in the United States. Among the 360 species of sharks, divers should keep an eye out for the great white, tiger, oceanic whitetip and bull sharks. These four sharks have caused most of the recorded, unprovoked attacks. The other sharks, however, are considered to be very shy. Some of them, however, have been involved in unprovoked attacks which are caused by mistaken identity. Sharks sometimes mistake humans for seals. Because these sharks do realize their mistake after one bite, they usually end up swimming away from a human. For this reason, sharks like the blacktip reef shark do not cause fatal wounds that may lead to death.