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 ...

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 ...

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 ...

It is not a fair battle: Two scientists on a tiny boat against one of the world's most invasive species. For the past six years, Loyola University Chicago ecologist Reuben Keller and his students have ...

A Louisiana red swamp crayfish spreads its claws in a threat display. This crayfish was found in Fairfield, Ohio, hundreds of miles from its native range. A lazy summer day is a perfect time to head ...

Scientists working for government breed biological control agents in lab to take on species choking native wildlife ...

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 ...

BREVARD COUNTY, Fla. – Crayfish on antidepressants act a bit bizarre, leaving their hiding places and boldly going where crayfish don't normally go, scientists have found. A new study led by the ...