While not all shark species are large, (the Dwarf Lantern, for example, is so small it can fit in a human’s palm) several species can pride themselves in being the largest fish in the sea.

They have the largest brain-weight ratio in cold-blooded fish species, and some populations even form close-knit communities.

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

Jara and his team were able to swim alongside and capture this rare sighting of the black seadevil, a species that usually inhabits the inky depths of the ocean ...

A team of marine biologists in Tenerife, Canary Islands, have caught on video a rare black devil fish for the first time in ...

A scary-looking creature with “devil” in its name was spotted close to the surface off Tenerife, a Spanish island.