Amazon mollies reproduce through cloning, producing genetically identical offspring for over 100,000 years. So when ...

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 ...

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 ...

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 ...

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

After nine months, the strange behavior that claimed the lives of endangered sawfish is back. Here’s what we know about what’s causing it. Dead sawfish washed up on beaches in the Florida Keys last ...

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 ...

Can fish do math? Well, no, not like people, but cichlids and stingrays have demonstrated that they can add and subtract by one when shown a group of up to five objects. Don’t believe it? Even the ...