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

Whether it's redfin pickerel in the Kennebec River or sturgeon in the Great Lakes, nearly one-third of freshwater fish ...

Scientists used AI to analyze 10,631 freshwater fish species and found that stable, connected rivers are critical for ...

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

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