Native to the Gila River basin, the loach minnow and spikedace are adapted to the beautiful yet vulnerable ecology of southwestern desert rivers. These rare, pint-sized fish are just two of many river ...

Nearshore wetland areas contain the greatest fish diversity, where many lesser-known species survive: for example, many minnow species (including the state endangered pugnose minnow), darters, ...

this minnow outlasts more specialized strains. Asexual animals arose from diversified sexually reproducing ancestors. Often they are hybrids between two different species, and may possess two ...

the U.S. Fish and Wildlife Service today proposed to protect the Clear Lake hitch — a large minnow found only in Northern California’s Clear Lake and its tributaries — as a threatened species under ...