With tentacle-covered snouts, claw-like spines that protrude from their heads and bodies covered in armor, these newfound catfish look more mythical than real. "They're warriors, they're fish ...

Setting up an aquarium is exciting until you realize that not all fish get along, and some need water conditions that clash..

Scientists analyzed an “iridescent” aquarium pet with bumpy lips and discovered a new species from Brazil, a study said. Photo from Y K yokeboy via Unsplash In a river of western Brazil, an “armored” ...

A rare new species of fish was recently discovered prowling the bottom of a river in the Amazon rainforest, researchers said. The creature — a yellow-hued, flat-bodied catfish — is distinguished by ...