One study finds that even cloned fish function with social cues, and as few as one individual can influence a shoal.

The ghost pipefish's scruffy appearance probably helps it look like floating algae, allowing it to blend in with its environment. Researchers had been on the hunt for this strange creature for years a ...

Introduced as live bait for trout in recreational fishing, the Eurasian minnow had a damaging impact on two lakes in ...

Reef fish near developed shores showed hidden signs of stress, even when adults appeared healthy and well fed.

According to animal experimentation statistics, fish are the second most commonly used group of animals in research after mice. They play an important role in aquaculture and also serve as model ...

Researchers used digital fish to study mate selection among green swordtails over nine generations. The males consistently preferred larger females, leading to increased average size in virtual ...

When news breaks, you need to understand what actually matters — and what to do about it. At Vox, our mission to help you make sense of the world has never been more vital. But we can’t do it on our ...

Our ability to count isn’t a distinct human trait. Animals can count, too. And, just like humans, some animals are better at math than others. For decades, researchers have designed experiments that ...