But this less celebrated species is a remarkable ... have the nickname "iridescent shark catfish," a seemingly ill-suited comparison for a toothless, freshwater fish. The nickname arises from ...

The Mekong giant catfish is the official freshwater heavyweight champion of ... where its numbers have plummeted so dramatically that the species is on the brink of extinction.

Creatures now are found only in Southeast Asia's Mekong River but in the past inhabited length of 4,900-kilometer waterway ...

"This discovery represents more than just a good catch." Officials celebrate after fishermen document incredibly rare sight ...

Six critically endangered Mekong giant catfish – one of the largest and rarest freshwater fish in the ... reviving hopes for the survival of the species. The underwater giants can grow up ...

The freshwater species under threat of extinction include fish, crabs, crayfishes, shrimps, dragonflies and damselflies, ...

Six critically endangered Mekong giant catfish — one of the ... a revival of the critically endangered species, which is among the world's largest freshwater fish. Fishermen released the fish ...

some weighing more than 120 kg (265 lbs), has raised hopes of a revival of a critically endangered species that is among the world's largest freshwater fish. Three adult giant catfish were caught ...

The Carolina madtom, a small catfish from the Tar River basin ... to gain protection for hundreds of freshwater animals in the southeastern United States. The region is home to more species of ...