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

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 ...

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 ...

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

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 ...

A group of men surround a Mekong giant catfish (Pangasianodon gigas). (Courtesy of Zeb Hogan.) (CN) — Many freshwater fish worldwide are in crisis, according to a new global assessment, but varied ...

A Mekong giant catfish (Pangasianodon gigas) just before release into the Mekong River in Cambodia. Fishers, Cambodian government officials, and scientists worked together to handle and safely release ...