A question that’s often baffled scientists is how certain species of fish can sometimes appear—and even proliferate—in isolated bodies of water not previously known to harbor them. A new study has ...

Scientists have long been captivated by killifish because they tend to pop up in unexplained places with seemingly no apparent sign of origin. While they typically appear in the fresh and brackish ...

These fish turn up in many surprising locations, but this was one place scientists didn’t expect to find them. By Veronique Greenwood Killifish manage to endure a variety of environments. The wee ...

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, ...

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 ...

A fish in Brazil travelled through the entire digestive system of a coscoroba swan — all before it even hatched. The killifish egg's strange journey of being eaten and defecated was the work of a team ...

The turquoise killifish lives in a fleeting world: the ponds that appear only during the rainy season in East Africa. As a new pond forms, turquoise killifish eggs buried in the mud spring from ...

Researchers at the Leibniz Institute on Aging—Fritz Lipmann Institute (FLI) in Jena, in collaboration with international partners, have made a significant breakthrough in killifish research. They ...

The annual killifish lives in regions with extreme drought. A research group at the University of Basel now reports in “Science” that the early embryogenesis of killifish diverges from that of other ...

Killifish manage to endure a variety of environments. The wee freshwater fish survive in isolated desert pools, lakes made by floodwater, even seasonal ponds that are little more than puddles. One ...