For one, they're much, much bigger. An adult male can weigh up to 2 pounds and grow to 9 inches in length, compared to native crawfish like White River or Red Swamp, which grow up to 4 inches and ...

Researchers in Brownsville, Texas, have been investigating reports of an Australian red claw crayfish, a crustacean that typically belongs 8,000 miles away, after the species was seen pervading ...

Finding none wasn't necessarily bad — it meant the pond isn't overrun with red swamp crayfish, an aggressive invasive species that threatens to upend aquatic habitats in Michigan. Red swamp ...

Fans of crawfish boils, etouffees and even some po' boys can now rejoice. It is officially legal to bring the red swamp crawfish — aka crayfish or crawdads, depending who you ask — into Colorado.

Only two species in the state are collected for commercial harvest, the red swamp crawfish and the white river crawfish. While they're separate species, the red swamp crawfish and white river ...