Red fish are a favorite for both novice and expert fish enthusiasts alike, making them a popular choice for aquariums, large and small.

The annual killifish lives in regions with extreme drought. A research group now reports that the early embryogenesis of killifish diverges from that of other species. Unlike other fish, their body ...

Eggs of killifish species coveted by hobbyists are sent on to international markets from Brazil via airmail. International animal trafficking rings often cash in on global demand for smaller, ...

Atlantic killifish have adapted to levels of pollutants that would normally kill them The killifish is up to 8,000 times more resistant to pollution than other fish Extremely high levels of genetic ...

Killifish biology has long intrigued fish enthusiasts and scientists. But human encroachment, habitat loss and climate change are dwindling killifish populations in the wild. Thankfully, collection ...

Tokyo police on March 8 arrested five men on suspicion of illegally breeding and selling killifish that were genetically modified to make them “red and shiny.” Genetically modified organisms can ...

Some animals live fast and die young. That means they need to grow up fast, too. This week, researchers crowned a new record holder for quick growth: Susan Milius at Science News reports that the ...

In comic books, falling into a vat of toxic chemicals can give you super powers. The same is sort of true for one species of fish – with help from a superhero relative. The 15-centimetre-long Gulf ...