Fish that survive in extreme deep-sea environments have developed the same genetic mutation despite evolving separately and at different times, researchers say. The scientists also found industrial ...

An "odd-looking" deep-sea fish recently washed ashore on an Oregon beach to the surprise of a local aquarium. The Seaside Aquarium in Seaside, Oregon, published pictures of the dead fish in an April ...

Scientists have uncovered why big predators like sharks spend so much time in the ocean’s twilight zone. The answer lies with ...

The fish was found at 200 to 2,000 meters below the surface. At least 16 types of recently discovered deep-sea fish are among the darkest creatures ever found, according to a study published Thursday.

A scary-looking creature with “devil” in its name was spotted close to the surface off Tenerife, a Spanish island. By Victor Mather Strange things live in the depths of the ocean. Even the light of ...

The ultra-rare find of a deep-sea creature known as an oarfish in the water off La Jolla Cove started a frenzy among scientists who have swarmed to find out more about the mysterious deceased fish.

Sleep in fish may look different from humans, but rest is essential for survival. Here’s what experts have to say about fish sleep. A protective mucous cocoon surrounds this parrotfish as it sleeps in ...