The ‘megafish’ living in southeast Asia’s Mekong River once faced extinction. A new rapid response system is helping reverse ...

The arapaima is one of the largest freshwater fish on Earth, growing up to 3 meters long and weighing 200 kilograms. But its ...

Add Yahoo as a preferred source to see more of our stories on Google. In 2005, Thai fishermen caught a ~646-pound, 9-foot Mekong giant catfish, among the largest freshwater fish ever reliably recorded ...

The world has seven continents, but do you know the largest freshwater fish in each? These creatures show the incredible diversity of Earth's inland waters. Let's get amazed as we look at these ...

BANGKOK (AP) — Scientists say the world’s largest recorded freshwater fish, a giant stingray, has been caught in the Mekong River in Cambodia. Wonders of the Mekong, a joint Cambodian-U.S. research ...

The capture of this amazing fish was caught on camera and it’s going to air on a future episode of ABC’s “Ocean Mysteries with Jeff Corwin,” The Washington Post reports. Then it was time to measure ...

The alligator gar bears no relation to alligators, but with its wide, crocodilian head and razor-sharp teeth, it’s easy to ...

The Mekong River hides some of the largest freshwater fish on Earth, and in 2005, village fishermen in northern Thailand hauled in a Mekong giant catfish so massive that scientists compared it to a ...