The red-swamp crayfish, Procambarus clarkii, has negatively impact the flora and fauna of freshwater ecosystems around the world, including those in Japan. In a new study now, researchers dive deep to ...

Watch a rare blue crawfish display its vibrant color and territorial instincts during a dramatic breeding confrontation. This up-close look at crayfish behavior reveals how competition, courtship, and ...

Rusty crayfish, an invasive species, has been discovered in the Little Thompson River in Larimer County, Colorado. This aggressive crayfish, known for its big appetite and rapid reproduction, poses a ...