An extensive investigation of South American Corydoras catfish, reveals that catfish communities, although containing almost identically colored and patterned fish, could actually contain three or ...

Peer into any stream in a South American rainforest and you may well see a small shoal of similar-looking miniature catfish. But don't be fooled into thinking that they are all the same species.

A variety of fish species have proven instrumental in the investigation of evolution, behavior, ecology, and physiology, among many other fields. Many model systems (e.g., zebrafish, guppies, and ...

Researchers found a new species of armored catfish from streams in northeastern Brazil, according to a new study. Photo by Tencatt LFC, Couto OLP, Santos SA, Sousa LM via Neotropical Ichthyology and ...