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 ...

American signal crayfish were brought over to UK in the 1970s to be farmed for the food industry. They escaped from captivity and spread prolifically in our rivers, streams and ponds, leaving ...

Life finds a way: Invasive six-inch marble crayfish are able to reproduce by themselves A mutant species of all-female crayfish taking over the world is not the latest science fiction film but a ...