Catfish are a diverse group of ray-finned fish. Public Domain image, CC3.0. Large migratory catfish, such as piramutaba (Brachyplatystoma vaillantii), travel up to 11,000 km round trip between the ...

If you liked this story, share it with other people. Around the world, migratory freshwater fish are in peril from activities including overfishing and, more recently, dams blocking their migratory ...

Lesley de Souza never expected the species of catfish she was searching for to be served up to her on a platter—but then she got to dinner. The Field Museum conservation biologist spent her days ...