A 300kg (661lb) stingray caught in the Mekong river in Cambodia is the biggest freshwater fish ever documented, scientists say. It unseated the previous record-holder, a 646lb (293kg) Mekong giant ...

By Kristine Sabillo The most extensive global assessment of freshwater animals to date has revealed that a quarter of all ...

The small freshwater fish lives in the Pecos River Basin of New Mexico and Texas. Conservationists petitioned in 2007 for protection for the Pecos pupfish. But it took a 2020 lawsuit for the Service ...

The study’s authors urge increased investment in research to address data deficiency, particularly in groups like freshwater mollusks. Banner image of discus fish by Rhett A. Butler/Mongabay.

California to the United States-Mexico border. MIGRATION: Adult steelhead migrate from the ocean into freshwater streams to spawn between December and April. BREEDING: Female steelhead dig a nest (or ...