The hammerhead shark is an easily recognisable fish species with large flat protrusions on its head and with its eyes on the sides. The shape of its head improves close-quarters manoeuvrability. It can measure up to 5 m in length and weigh up to 150 kg. The hammerhead shark is to be found in all tropical oceans and shallow coastal waters. It mainly eats squid, octopuses and crustaceans. Although the young often form groups, the adults are rather solitary.