They are also known to form schools during the day, sometimes in groups of over 100. In the evening, like other sharks, they become solitary hunters.

There are many theories as to why the head is shaped the way it is. One of the theories states that the enlarged head allows it to have increased sensory abilities. While this may be true as it is not only capable of astutely detecting would be prey but also magnetic fields underwater as also  sensory volcanic activity.    

It is supposed that hammerhead sharks use the shape of the head to keep themselves buoyant besides lifting themselves up which possibly requires a smaller turning radius. The hammer-shaped head is very useful to assist the animal trap and hold prey against the ocean floor. They are notably one of the few creatures that get tanned from prolonged exposure to sunlight.