Populations of rusty crayfish, an invasive species in the lakes of Minnesota and Wisconsin, have seen a steady decline in some regions—and, for once, humans aren't responsible. A study published in ...

Royal Oak — Knee deep in a pond behind Royal Oak High School, Mikela Dean split open a tubular wire trap she had extracted from the mucky water. Nothing inside. Again. Dean, watershed ecologist for ...

Researchers trap rusty crayfish to test ways to remove the invasive species. Researchers trap rusty crayfish at Tofte Lake to develop methods for removing the invasive species from northern waters ...