Not all fish are big, flashy, or easy to spot. Some are so tiny that you could swim past them a dozen times without noticing.

A new species of Amazonian fish, Pyrrhulina punctata, has been discovered in Peru, revealing previously unknown biodiversity ...

From field sites in Vietnam and the coast of West Africa to her laboratory in Washington, D.C., Kate Bemis applies her knowledge of fish diversity to support sustainable fisheries Naomi Greenberg Kate ...

Bass in southeastern rivers turn out to be two species, highlighting hidden diversity and growing threats from habitat ...

In the wide, sandy stretches of Brazil’s Araguaia River, the piraíba, South America’s largest catfish, is a cornerstone of ...