Researchers identified a new freshwater fish species in South Africa after years of genetic testing and analysis.

Species numbers alone do not fully capture how ecosystems are changing. In a global study, scientists analyzed long-term data ...

A search for a fish lost to extinction led to a brand-new species hiding in a South African river.

Artificial reproduction in fish species encompasses a suite of techniques designed to overcome the limitations of natural spawning. By harnessing hormonal stimulation, controlled environmental ...

A dozen fish pulled from a South African river sparked years of debate before being confirmed as a new species.

Tuna, opah, and billfishes such as marlins and swordfish are among the 0.1% of fish species that are warm-blooded. Evidence by an international team of researchers led by UC San Diego’s Scripps ...