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 ...

These crayfish are larger, more aggressive, and reproduce more quickly than native species, leading them to dominate ecosystems and disrupt food webs. Rusty crayfish have a significant impact on ...

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 ...