Hammerhead sharks can be easily recognized by their additional dorsal fins.
Hammerhead sharks use a group of sensory organs called ampullae of lorenzini to identify the electrical fields produced by their prey. These organs are so sensitive, they can sense a human heart beating several miles away.
Hammerheads use their wide heads to attack stingrays, pinning them against the sea floor.
Hammerhead sharks use nine ways to communicate with each other. One of the more interesting ways is the violent shaking of the head from side to side.