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

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

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

Whether it's redfin pickerel in the Kennebec River or sturgeon in the Great Lakes, nearly one-third of freshwater fish species are facing possible extinction, threatening food supplies, ecosystems and ...

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