Add Yahoo as a preferred source to see more of our stories on Google. The super invasive rusty crayfish, sometimes called a gladiator, has been slowly taking over several waterways in Pennsylvania.

Colorado Parks and Wildlife announced the discovery of rusty crayfish in Lake Granby. In a routine Aquatic Nuisance Species sampling done by Parks and Wildlife, multiple crayfish were found in Lake ...

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 ...

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 ...

Researchers trap rusty crayfish to test ways to remove the invasive species. Researchers trap rusty crayfish at Tofte Lake to develop methods for removing the invasive species from northern waters ...

Most mornings when Eric Larson hauls a wire-mesh trap into his fishing boat on northern Wisconsin’s Trout Lake, he finds dozens of coffee-colored crayfish wielding their oversized pinchers in a frenzy ...

These crayfish are larger, more aggressive, and reproduce more quickly than native species, leading them to dominate ecosystems and disrupt food webs. Rusty crayfish have a significant impact on ...

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 supplies for ...