Ted Judah went diving off McAbee Beach in Monterey Bay when he caught sight of a 'silvery knife blade undulating thing,' ...

Far below the ocean’s surface, where sunlight disappears and pressure reaches crushing levels, some of the planet’s strangest ...

Wondering about the world's weirdest sea creatures? We've compiled this list of the 20 weirdest animals in the ocean to show ...

These episodes of sudden light deprivation are slowly making several underwater organisms vulnerable to collapse.

These three fish are freaks, phantoms and mysteries of the deep. Here’s what we’ve learned from the rare glimpses we’ve had of their lives. The deep sea is one of Earth’s final frontiers. Given its ...

Giant phantom jelly sightings are extremely rare, but recent footage shows this extraordinary deep-sea jellyfish in all its ...

When Ted Judah goes scuba diving off the coast in Monterey Bay, he normally swims at the surface to the area above the dive ...

These "total monsters of fishes" are extinct today, though new clues about their lives come from CT scans and their closest ...

Why penguin-eating pumas live closer together in Patagonia, the reason chimps can reason, ants sacrifice individuals for the ...

Thousands of feet down off the coast of Japan swam a pink sea creature with “dark yellow eggs.” Out of the shadows, something encircled it and pulled it to the surface. Sifting through their catch, ...

To get to the bottom of it, they looked at the fish’s anatomy and physiology and discovered something curious in their gills.

The deep sea also harbours some of the most intriguing and alien-like species in existence, yet for several centuries, these ...