Many otherworldly deep-sea creatures, though, are so beautiful and mysterious that you won't believe they exist. Even in the ...

Here are some of the deep-sea animals that we do know something about. The pelican eel (Eurypharynx pelecanoides) is a type of gulper eel that uses its large, pelican-like mouth to gulp up its prey.

Beneath the ocean’s surface lies a world of perpetual darkness, home to some of Earth’s most bizarre and fascinating ...

Look, here comes a blobfish! This thrilling deep-sea fish was voted the world's ugliest animal by the Ugly Animal Preservation Society. But its jelly-like skin looks much more natural at 900 meters.

"Yes!" Narrator: This is a dead whale, which scientists recently discovered at the bottom of the Pacific Ocean covered in all kinds of creatures from bone-eating worms to deep-sea octopuses.

Organisms in the deep sea rely on gravity flows to lay down sediment and then make burrows beneath the seafloor, according to a new study.

Lurking in the ocean's depths are bizarre creatures reminiscent of sci-fi ... sex multiple times throughout its life. The gulper eel, or pelican eel, has a massive mouth, grows six feet, and ...

In the deep trenches off Russia, two new species of eel-like creature were discovered. Getty Images/iStockphoto In the depths of the north Pacific, long wriggling creatures were caught ... →Diver ...