They look like devils and hence are called pez diablo in Spanish, but these demonic objects are dried and mutilated versions ...

Here are our favorite types of freshwater fish you can keep as a pet. If you're in the throes of setting up a home aquarium, ...

In landlocked Arizona, where the Colorado River crisis has put water use under a microscope, a new inland desert fish farm is ...

Researchers have found that chunks of "flipped" DNA can help fish quickly adapt to new habitats and evolve into new species, ...

Reef "beauty salons" staffed by tiny cleaner fish aren t just for parasite removal they may also shape the microbial life of ...

Independent pet shops are few and far between these days but there is one in Blackburn which must take the crown as ...

Whether you're a beginner or an expert, we found the best islands for snorkeling where you'll spot large schools of fish, ...

But now, incredibly, new research suggests that the cleaner wrasse—a tiny, tropical reef fish—can recognize itself too, making it the first fish to do so. Scientists have long used a mirror ...

“All of a sudden, a little brilliant burst of bright blue or yellow jumps out at you from one of these tropical fish—there is something magical about that.” Where exactly these angelfish, ...

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Yet in recent years, something unexpected has been happening beneath the surface: tropical fish—species that typically thrive in warm, equatorial waters—are increasingly being found in these northern ...