Researchers said they named the new species after Ivo Silva dos Santos, a “technical assistant in the Ichthyology Laboratory ...

In a remote river of northern Brazil, an iridescent creature moved through the water, or at least tried to, but something ...

The Arctic landscape during the Cretaceous Period may have been dominated by the dinosaurs, but the rivers and streams held something more familiar. Alaska's fresh waters 73 million years ago were ...

Scientists found a “silvery” river creature in ... “distinctive”-looking fish and, after taking a closer look, realized they’d discovered a new species: Cyphocharax ivo, or Ivo ...

GRAND JUNCTION, Colo. (KJCT) -The Colorado River has new fish swimming in its waters. A group of Palisade High School students, part of the Endangered Fish Hatchery, released razorback sucker fish ...

Many of the most popular species chased by anglers are fish that have records that are decades old and may never be broken.

Commissioners have greenlit an aggressive effort to eliminate a fast-spreading invasive species that endangers native wildlife and local habitats Commissioners have greenlit an aggressive effort ...

The California Department of Fish ... species by the CDFW and the U.S. Fish and Wildlife Service. Data from CDFW’s Steelhead Dashboard also shows a sharp decline in steelhead catches on the Mad ...