Contentedly full from its last meal, a mysterious sea creature swam through the royal blue depths off the coast of Costa Rica. Twirling and spiraling, the misshapen animal moved in a mesmerizing way.

Although space exploration has taken humanity light years ahead in the expanse, researchers are still exploring the depths of ...

Remotely operated vehicle on a research dive captures close-up video of a beady-eyed gulper eel with a parasitic copepod permanently attached to its body. When you purchase through links on our site, ...

A nightmarish sea creature caught off New South Wales, Australia, has ignited debate after a professional angler admitted he was baffled by it. The snake-like creature appears to be a type of large ...

Scientists saw a mysterious deep sea animal, still misshapen from its last meal, swimming off the coast of Costa Rica, a first-of-its-kind video shows. Screengrab from the Schmidt Ocean Institute's ...