BROWNSVILLE, Texas — Scientists in Texas are on high alert for an invasive species that could threaten native wildlife: an Australian crayfish that has appeared in the state’s resacas, the remnant ...

MADISON, Wis. (WBAY) - Two aquatic animal suppliers have been convicted in multiple counties of shipping illegal, invasive species of crayfish to Wisconsin, despite reported warnings from the ...

An invasive crayfish species from Australia is posing a threat to the native crayfish species in the Rio Grande Valley, Texas officials warn. Screengrab from Texas Parks and Wildlife video There’s a ...

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 ...

There’s a “growing concern” in the wetlands of the Rio Grande Valley as researchers sift through dozens of traps and nets in search of a potential “threat,” according to Texas officials. Locals in ...