Oarfish have long been associated with impending doom and its eerie appearance and deep-sea origins have cemented its reputation as a creature of superstition.

The typical dorsal fin is a triangular-shaped piece of skin wrapped around muscles and bony spines or rays that sits on a ...

A rarely seen deep-sea oarfish that is believed to have inspired sea monster legends was spotted along the shores of Mexico as seen in a video captured by a beachgoer.

You may be aware that Chinook salmon return from the ocean to their spawning grounds in Idaho, but what you might not know is ...

A Volusia County sheriff's deputy came to the aid of a massive mola mola in danger of dying when the fish became trapped in ...

Deputies from the Volusia Sheriff's Office assisted a Mola Mola fish stuck on a Florida beach, hauling the 5,000-lb. fish to deeper water ...

The coelacanth has gills similar to those of fish living at the depths in ... In addition to their paired fins, the second dorsal and anal fins also have stout, muscular lobed bases.

A recent study by an animal advocacy group showed that fish were subjected to painful suffocation at the Hwacheon Sancheoneo ...

These upright fish have a dorsal fin that flutters 30 to 70 times per second to provide forward propulsion. They also have a set of small pectoral fins near the back of their head that are used to ...