This invader is eating through Colorado’s rivers, and it could wipe out native fish and plants if left unchecked.

The emergence has caused concern among state wildlife officials. Officials issue urgent warning after alarming river ...

Researchers studying harmful algal blooms in the St. Louis River Estuary that separates Minnesota and Wisconsin have made a ...

University researchers discovered two new crayfish species in the Pacific Northwest, now threatened by invasive species.

Divide mushrooms and crayfish tails evenly among gratin dishes. Sprinkle each dish with 1/4 teaspoon cognac. Top each with 1 whole crawfish and garnish with parsley.