Sharks feeding, lures or petting. In Australia tourist pay to go down in shark cages to photograph White Pointers off populated beaches. With wetsuits filled with meat and fish to attract sharks, to attack human forms for happy snaps. NOT a good idea with creatures that consider you as a possible food source. We have Great Whites, Tigers, Whalers, Makos, Bulls etc.
A lure was use in this pic so the diver could pet the shark for happy snaps.
Animals attack for the following reasons, food, mating, unwell defence, fear, irritating.