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 a popular aquarium fish in Xingu river and discovered a new species, already critically endangered, a study said. Photo from Sousa, Sousa, Oliveira, Sabaj, Zuanon and Rapp Py-Daniel ...

There are more than 3,000 types of catfish swimming the waters of Planet Earth at present, with at least 30 of them calling the U.S. home. The majority of them, here and abroad, provide excellent ...