In this episode, Dr. Alters tracks the fallout when an iguana with bad manners and a voracious appetite disrupts the natural order of a paradise island ecosystem. Next Dr. Fleck and grad student Marc Huot check out a clever way to head off invasive aquatic species, that often hitch rides on the hulls of ships. And finally, Dr. Gardy travels to Mexico to find out what happens when an invader intrudes on the most private place you've got - your body.

From the Curio.ca streaming audio-visual collection.