A recent deep-sea expedition into the Tonga Trench ... The Pacific Sleeper Shark is a silent predator designed for the cold, dark depths of the ocean. These sharks can move quietly through the ...

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

This is only the second time the species has been recorded while alive. “I thought it was A.I.,” says fish biologist Kory Evans.

The phenomenon of 'dark oxygen,' whereby deep-sea metallic nodules generate oxygen without sunlight, is reshaping our understanding of oceanic processes.

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

Scientists capture a black sea devil anglerfish near Spain's Canary Islands, marking the first-ever daylight sighting of this ...

The shock discovery that metallic nodules could be producing oxygen in the deep sea made headlines last year – now the team behind it is launching a new project to confirm and explain the findings ...