Kimmel calls the marbled crayfish a kind of "freak accident" of two crayfish species that may have been imported from Florida into Germany in the '90s and were able to mate. Through that mating ...

She said the province is also concerned the quickly reproducing species — a crayfish litter averages around 241 eggs — will dominate Calgary's waters and threaten small fish populations as ...

Two new species of crayfish have been identified in the Pacific Northwest region of North America, and researchers say both species are vulnerable to extinction.One of those crayfish is called the ...