Peaceful tanks look great, but they’re not always the most exciting. Some fish bring a lot more drama, and for hobbyists who ...

The Mexican tetra lives in freshwater streams and pools from Mexico up into the southern United States. But these fish also live in cave systems in at least 29 separate places in Mexico, where they ...

An analysis of marine fossils from the Upper Miocene Chagres Formation in Panama, most belonging to the Myctophidae family, ...

The United States is the main market for “ornamental” marine fish, those that end up as pets in aquariums. Now, a new study ...

An unusual type of fossilized fish can be found within the limestone of present-day Germany. The Late Jurassic era conditions ...

A Bolivian killifish believed extinct, Moema claudiae, resurfaced in one vulnerable pond, revealing both a conservation win ...