It’s crayfish season in Louisiana, but the Pacific Northwest is receiving all the crayfish spotlight. Researchers recently discovered two new species of the crustaceans: the Okanagan crayfish and the ...

The Oldham Times reported that volunteers discovered the American signal crayfish while cleaning up the River Beal. The "big" creature caused excitement among the kids helping out. In the 1960s, the ...

For decades, the signal crayfish has been an ecological troublemaker. It is invasive and widespread across Europe, Asia, and parts of the United States. Recently, researchers at the University of ...

CHAMPAIGN-URBANA, Ill. (WCIA) — University of Illinois researchers studying an invasive species of crayfish recently made a unique discovery — two new species that had long been mistaken for the ...