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 ...

Rusty crayfish have been found in the Upper Colorado River Basin for the first time. That's according to Colorado Parks and Wildlife, which says the discovery in Grand County of the invasive species ...

Rusty crayfish, an invasive species, has been discovered in the Little Thompson River in Larimer County, Colorado. This aggressive crayfish, known for its big appetite and rapid reproduction, poses a ...

For decades, the signal crayfish has been an ecological troublemaker. It is invasive and widespread across Europe, Asia, and parts of the United States. Recently, researchers at the University of ...

The Okanagan Crayfish (Pacifastacus okanaganensis) has been newly described from interior British Columbia and Washington State. Another new species, the Misfortunate Crayfish (Pacifastacus ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. DENVER (KDVR) — Colorado Parks and Wildlife ...