Mudskippers break the rules of fish biology by breathing through their skin, walking on their fins and thriving on land where ...

A clever tropical fish has flipped how biologists are thinking about memory, brains and visual recognition in the animal ...

Along a nine-mile stretch of river between two waterfalls in the Australian rainforest lives a tiny fish that’s been there for millions of years, hiding between rocks along the riverbank by day and ...

In swarm research, a new method makes it possible to track the eye movements of fish automatically, non-invasively and in 3D. Researchers explain why this is important for understanding the 'rules of ...

The fish was found at 200 to 2,000 meters below the surface. At least 16 types of recently discovered deep-sea fish are among the darkest creatures ever found, according to a study published Thursday.

Remote access, overlooked lakes, and subtle structure often hold untouched fish. Here’s why effort and distance matter more than luck on the ice.

Why frozen-at-sea fish is often better than "fresh": "Time and temperature are the enemies of fish quality, which is why ...