Louisiana pays $5 a tail to encourage people to hunt the nutria.
While we are waiting for the documentary to come out, here's a somewhat gruesome gallery of swamp rat photos.
Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. His new book is Maker Dad: Lunch Box Guitars, Antigravity Jars, and 22 Other Incredibly Cool Father-Daughter DIY Projects