Experts expect the invasive crayfish to feed on as many fish and plants as possible which could deprive the native species. They can also eat other crayfish, experts said. Many in ...

A veterinarian and conversation expert spoke about invasive and nonnative organisms during a special live show of "The ...

Are humans the only species to drive another to extinction? Tom Ruppel | Dixon, California ...

Invasive species are a nationwide problem, destroying ecosystems and crowding out native plants and animals. Here are the ones specifically plaguing Illinois.