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.

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 ...