Sharks Are Dangerous....

Well, sharks are Dangerous for humans. Some types of attack that they perform are :-

 Provoked Attack 
Provoked attacks are caused by humans touching sharks. Often this involves unhooking sharks or removing them from fishing nets. However, recently there have been a number of incidents involving divers who were attacked after grabbing or feeding a shark while underwater.

 Unprovoked attacks
 Unprovoked attacks happen when sharks make the first contact. This can take three forms:

Hit-and-Run 
Hit-and-Run Attacks happen near beaches, where sharks try to make a living capturing fish. In pounding surf, strong currents, and murky water, a shark may mistake the movements of

humans, usually at the surface, for those of their normal food, fish. The shark makes one grab, lets go, and immediately leaves the area. Legs or feet are often bitten; injuries usually are minor and deaths rarely occur.

 Sneak Attack
Sneak Attacks take place in deeper waters. The victim doesn't see the shark before the attack. The result can be serious injury or death, especially if the shark continues to attack.

  Bump-and-Bite
Bump-and-Bite Attacks happen when the shark circles and actually bumps the victim with its head or body before biting. As in the sneak attack, the shark may attack repeatedly and cause serious injury or death.