Oregon has two new invasive species to deal with. For the first time in the western United States, scientists say two kinds of crayfish have appeared in streams and rivers. What makes this story ...

It sounds like something out of a sci-fi movie: a new crayfish population made entirely of asexually reproducing, all-female ...

Alabama already had more documented species of crayfish living in its waters than any other state, but that lead was padded this week as two biologists announced the discovery of a new species called ...

The Colorado Division of Wildlife is urging extra caution from all those fond of a good old-fashioned crayfish boil, after discovering a particularly aggressive variety of the small crustacean in ...

No one knows exactly when the clones first appeared, but humans only became aware of them in the early 2000s. It was a German aquarium owner who first brought it to scientists’ attention. In 1995, he ...

Marmorkrebs, or marbled crayfish, have an extraordinary ability. Not only can they reproduce excessively in the wild, but a new study from the German Cancer Research Center (DKFZ) has revealed that ...