The same study also finds there are three species of Electrophorus, rather than one.

The bioluminescent Anomalops katoptron can coordinate its schooling behavior after dark. 

The fish’s undiscerning palate might make more of the lake habitable to the species than once thought, according to a new study.

To see if the spiky fish shares signaling pathways found in other organisms, scientists scooped up specimens during a mating frenzy on the shores of Japan.

Maternal care for the fish alters the structure of their developing heads.

Scientists create a soft-bodied robotic fish that pumps synthetic blood and swims on its own.

See a close-up of the deep-sea dragonfish’s transparent teeth.

A fossil of a school of fish from the Eocene appears to represent coordinated collective movement.

The silver spinyfin has an extraordinary diversity of rod photopigments, which researchers propose may allow it to see color in the deep, dark sea.