Hammerhead sharks live in the open ocean. They all swim together during the day, in great schools. At night they separate and hunt.
Because their eyes are very far apart, they have a wide angle of vision and can see many things in their periphery that other sharks might miss. Their mouths are small, for sharks, and they hunt near the bottom of the ocean.
Unlike makos or tiger sharks, hammerheads have never killed anybody, although they've bitten a few people. Unlike great whites, who hunt seals regularly, none of the food a hammerhead usually eats look anything like humans.