In a river of western Brazil, an “armored” creature with bumpy lips swam through the “dark tea-colored” waters. Something about it caught the attention of nearby scientists — and for good reason. It ...

Scientists caught an “armored” river creature with a maze-like pattern, a popular aquarium pet, in Brazil and discovered a new species. Photo from Getty / iStockphoto In a river of northeastern Brazil ...

Scientists and fishermen in Brazil caught an “armored” river creature known to sting and discovered a new species, a study said. Photo from Willian Massaharu Ohara via Tencatt, Ohara, Carvalho, and ...

Scientists found an “armored” creature with “copper”-colored teeth in mountain rivers of Brazil and discovered a new species, a study said. Photo from Uzeda, Paiola, Cesar, Okubo, Marques-Frisoni, ...

Somewhere in southeastern Mexico, an angler pulled up his nets expecting the usual haul, but what he found instead left scientists a bit worried. His catch turned out to be an Amazon sailfin catfish, ...

We're bowfishing for giant invasive armored catfish tough, prehistoric-looking fish that are taking over local waterways.

As night fell across northern Brazil, fishermen peered into the “tea-colored” river water searching for an “armored” creature with a “powerful toxin.” Eventually they spotted and caught it, carefully ...

Scientists found an “armored” creature with “copper colored” teeth in rivers of Brazil and discovered a new species, a study said. Photo from Uzeda, Paiola, Cesar, Okubo, Marques-Frisoni, Andrade and ...