In a river near a police department in southern Brazil, thousands of catfish amassed at the base of a waterfall and began to climb. The unusual fish gathering caught the attention of police officers — ...

A new species of catfish was discovered from a river in Brazil, according to researchers. Photo shows a representative area of a river. Photo by Felipe Dias on Unsplash An “iridescent” catfish ...

Imagine standing next to a loud waterfall in Brazil’s Aquidauana River and seeing thousands of tiny fish climbing straight up wet rocks. These are bumblebee catfish, not just regular river fish ...

Scientists discovered a tiny new species of catfish in the waters of Rio Rio Paraíba do Sul basin, Brazil. The new species Pareiorhina hyptiorhachis belongs to a genus of armored catfishes native to ...

Scientists in Brazil filmed thousands of catfish climbing up waterfalls in a first-of-its-kind sighting, videos show and a study said. Photo from Marinho, de Paula, Severo-Neto, Santos and ...