However, even these remaining refuges are under threat now from an alien invader. American signal crayfish were brought over to UK in the 1970s to be farmed for the food industry. They escaped ...

The UK native white-clawed crayfish (Austropotamobius pallipus) crayfish is under considerable pressure throughout the UK from the invasive American signal crayfish and a fungal pathogen (crayfish ...

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 ...