Native to Southeast Asia, a tiny freshwater fish packs a surprising ... against a keen ear in its surroundings. These fish can produce sounds of high amplitude exceeding 140 decibels at the ...

A 300kg (661lb) stingray caught in the Mekong river in Cambodia is the biggest freshwater fish ever documented ... that the natural world can still yield new and extraordinary discoveries ...

According to the Guinness Book of Records, a nine-foot-long individual caught in northern Thailand in 2005 weighted an astounding 646 pounds, making it the largest exclusively freshwater fish ever ...

The giant freshwater stingray may be the world’s largest freshwater fish. It’s also cloaked in mystery. No one is sure how many giant stingrays are left, which habitats they prefer ...

Climate change warms waters near the poles, enabling larger migratory fish like salmon to flourish. Equatorial populations ...