Mutant, all-female crayfish spreading rapidly through Europe can clone itself

A voracious pest that mutated in a German aquarium and is marching around the world without the need for sexual reproduction may sound like science fiction, but a genetic study has revealed that a rapidly spreading all-female army of crayfish is descended from a single female and reproduces without any males.
Read more: https://www.theguardian.com/environment/2018/feb/07/mutant-all-female-freshwater-crayfish-that-clones-itself-spreading-rapidly-through-europe?source=Snapzu