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

However, there's another strange fish that can't swim, and it looks almost exactly like the Cookie Monster from Sesame Street ...

Despite humanity looking at the ocean for as long as humans have strived ... Here are some of the biggest fish in the oceans.

Video shows the remarkable and menacing-looking fish swimming out of its deep-sea depths in light-filled water, allowing it to be stunningly observed outside its pitch-black habitat. "It is a true ...

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

Deep-sea creatures, rare beings that typically reside in the abyssal depths, are surfacing in unprecedented numbers. What is ...

According to the organization, the fish is a so-called “black seadevil” known by its scientific name Melanocetus johnsonii. They typically swim between 650 and 6,500 feet below the ocean’s ...

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 ...

This tiny fish was filmed by researchers in Tenerife, swimming towards the water’s surface. What makes this so unusual, is that anglerfish live in the depths of the ocean, thousands of metres ...