Sharks attack people for a number of reasons:
  • Sharks might mistake a human on a surfboard for another similar shaped animal such as a seal.
  • Sharks are more likely to attack a human when provoked. Bull sharks have been known to attack humans even after they are caught.
  • Often, a shark will take a bite out of a human to test out how they taste and they may just be curious of what this unfamiliar animal tastes like.