This invader is eating through Colorado’s rivers, and it could wipe out native fish and plants if left unchecked. Colorado wildlife officials are raising the alarm after an aggressive invasive species ...

An invasive species of crayfish that is taking over streams from Minnesota to Maine might be successful because it's not a fussy eater, according to biologists with the University of Cincinnati. In ...

It’s crayfish season in Louisiana, but the Pacific Northwest is receiving all the crayfish spotlight. Researchers recently discovered two new species of the crustaceans: the Okanagan crayfish and the ...

The super invasive rusty crayfish, sometimes called a gladiator, has been slowly taking over several waterways in Pennsylvania. The crayfish were transported to Pennsylvania from their native range in ...

URBANA, Ill. – In many North American lakes, a tiny clawed creature has become a big bully. The invasive rusty crayfish roams lakebeds, snapping up snails, bivalves, and water plants, cutting off food ...

LARIMER COUNTY, Colo — A non-native crustacean has been discovered in the Little Thompson River for the first time. Colorado Parks and Wildlife (CPW) confirmed the presence of rusty crayfish in the ...

Colorado wildlife officials are raising the alarm after an aggressive invasive species was discovered in the West Fork Little Thompson River, the Cool Down reported. The culprit? The rusty crayfish—a ...

An invasive species of crayfish that is taking over streams from Wisconsin to Maine might be successful because it's not a fussy eater, according to biologists. The rusty crayfish is native to Ohio ...