The great white shark is a species of large mackerel shark which can be found in the coastal surface waters of all the major oceans and is notable for its size. The lifespan of great white sharks is estimated to be as long as 70 years or more. It has no known natural predators other than, on very rare occasions, the killer whale. It is arguably the world's largest known living macro-predatory fish, and is one of the primary predators of marine mammals. It is also known to prey upon a variety of other marine animals, including fish and seabirds.
The great white shark is one of only a few sharks known to regularly lift its head above the sea surface to gaze at other objects such as prey.