The marine photographer who captured the footage said it could be the world's first recorded sighting of a black seadevil ...

The basking shark’s scientific name, Cetorhinus maximus, roughly translates to “great-nosed sea monster” in Greek ... basking sharks eat tiny organisms called zooplankton.

Sea Monsters Revealed has a mako shark — the fastest shark in the world ... help create the feeling that ancient sea creatures are eating their prey right in front of you.

These sea monsters grew upwards of 40 ... Predators likely included some of the fiercest monsters of the seas, such as the sharp-toothed shark Cretoxyrhina and the giant mosasaur Tylosaurus.