The secret to humans thriving well into old age may lie with a species that barely lives for any time at all: the East African turquoise killifish, whose four- to six-month lifespan makes it among the ...

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 ...

It's one of the golden rules of the natural world – birds live in trees, fish live in water. The trouble is, no one bothered to tell the mangrove killifish. Scientists have discovered that it spends ...

The population of Gulf killifish in the Houston Ship Channel had been steadily declining for decades, likely a result of the toxins pouring in from industrial activity, when suddenly and mysteriously, ...

A fish that lives in rain puddles has beaten its own record for the fastest known sexual maturity among vertebrates. Some other vertebrates come close, but they take shortcuts, says coauthor Martin ...