At 6,000 feet below the sea's surface, the ribbon sawtail fish is at home. This predator feeds on deep-sea invertebrates and marine fish. It uses photophores, or light-emitting organs, to attract ...

Deep-sea fish are animals that live in the darkness below the sunlit surface waters, that is below the epipelagic or photic zone of the sea. The lanternfish is, by far, the most common deep-sea fish.

Why it's awesome: Earth's oceans are home to many secretive and unusual creatures that humans rarely see — including giant phantom jellies. These elusive deep-sea creatures have a 3.3-foot-wide (1 ...

Miles below, a deep-sea fish approached the camera’s bait then ... moving tail-first away from the camera in an almost ribbon-like manner. A cutthroat eel, or Ilyophis robinsae, swimming ...

These elusive deep-sea creatures have a 3.3-foot-wide (1 meter) bell and four ribbon-like arms that grow ... their food — usually plankton or small fish — and hoist them into their mouths.