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 ...

In this video i will be going through 5 of the largest freshwater fish in the world. There are many giant freshwater fish in the worlds rivers and lakes but what fish is the biggest freshwater fish in ...

Add Yahoo as a preferred source to see more of our stories on Google. Alessandro Biancardi with the pending world-record Wels catfish. Although it's hard to say for sure, this is likely the biggest ...

A fisherman on the Mekong river in Cambodia has hooked the biggest freshwater fish ever recorded, scientists said — a 300-kilogram stingray. The giant freshwater stingray, which measured four metres ...

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 ...

From river giants to land-dwelling beasts, these are the biggest creatures walking, swimming and flying across our planet ...

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 ...

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

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American Two of the world's biggest freshwater fish ...