Seidel’s armored catfish have a “relatively large distribution” throughout Xingu River in northern Brazil, the study said. Some catfish released by “aquarium fish traders” a few years ...

a “shy” creature tucked its “armored” body into a rocky crevice. Divers spotted the patterned animal and recognized it as a popular aquarium pet. It also turned out to be a new species.

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 ...