H. atlanticus is commonly referred to as a "seven-armed" octopus. In the last 27 years, there have only been 3 sightings of this mysterious octopus.
Fish are known for being seemingly cold-hearted creatures, swimming the cool depths of our vast oceans. But now scientists have discovered the first fully warm-blooded fish, and it's making them question how much we really know about marine life.
Tropical coral, the iconic face of coral life everywhere, fuse together with the help of calcareous algae that grow on the crust of the unusual animals' dead branches. However, not every species of coral colonizes in this manner. A new study on cold-water corals has found that even unrelated species can fuse in a unique process that does not require the help of a third party, making for some beautiful combinations of shape and color.
You may have heard of whale falls, but a new study of deep-sea ecosystems is arguing that it is actually jellyfish falls that are utterly essential to the complex and little-understood life of the deep sea.
The corpse of a rarely seen deep-diving whale was recently discovered on the Australian coast.
Earlier this year, researchers sending robots and cameras down to the deepest depths stumbled upon what they are calling an incredibly rare and "stunning" sighting. A vibrantly purple siphonophore danced for the camera as it made its away just above the ocean floor.
In an effort to learn more about the mysterious deep, researchers are taking a closer look at one of its primary predators, deep sea sharks. In a recent study, experts stare into - or rather, at - the eyes of the lanternshark, a bioluminescent shark that stalks waters 200 to 1,000 meters below the ocean's surface.
Chilean devil rays, thought to dwell mostly near the ocean's surface, actually are among the ocean's deepest divers, according to a new study by scientists at Woods Hole Oceanographic Institution (WHOI).