Shark attack: Gang of great whites unleash 'unimaginable' assault near Cape Cod

Most great whites spend their days hunting for prey deep below the surface.

But as the NOAA video demonstrates, they will occasionally swim to the surface for a meal – but only on very rare occasions.

The ISAF said: “Some evidence suggests that white sharks decide a prey’s palatability while it is lodged in the shark’s mouth.

“Researchers also believe that white sharks may prefer animals rich in energy, such as marine mammals, in favour of less fatty, energy-poor prey.

“This is supported by some observations of aggregations of white sharks selectively feeding on the blubber but not the muscle layers of mysticete whales.”