The blue catfish was never supposed to be in the Chesapeake Bay. In the 1970s, the species was introduced into the James River in Virginia as a trophy fish. From there, it quietly slipped into the Bay ...

Scientists found several “armored” animals in rivers of Ecuador and discovered two new species, a study said. Photo shows a representative area. Photo from Joris Beugels via Unsplash In a muddy river ...

Invasive catfish species, particularly blue catfish (Ictalurus furcatus) and flathead catfish (Pylodictis olivaris), have emerged as significant drivers of ecological change in many freshwater and ...

The catfish are dark green or black, with a paler belly. Similar to other catfish species, they have long, eel-like bodies and flat heads with wide mouths. They have two long barbels on the upper jaw ...

In a river of eastern Brazil, an “armored” creature swam along searching for the next meal to sink its “copper colored” teeth into. But it wasn’t the only one searching. Passing scientists scooped up ...