A deep-sea predator equipped with tubular, light-amplifying eyes and a highly specialized jaw system is capturing scientists' attention for its extraordinary ability to thrive in pitch-black waters.

Cheap fish may be good for your grocery budget, but it can come back to bite you in other ways. Think twice before buying and ...

We tend to credit animals like cats and dogs with a certain degree of mental complexity. But fish aren't usually afforded that kind of praise. "They do not talk, they do not bark," says Caio Maximino, ...

A tiny fish has shown signs of a remarkable level of intelligence in mirror test experiments, not only recognizing itself in the reflection but also using a piece of food to explore how the mirror ...

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 ...