Currently in its 52^nd year, the internationally-recognized wolves and moose project of Isle Royale is the longest continuous study of a predator-prey system in the world. We talk with one of the project’s researchers, John Vucetich, from Michigan Technological University, about the relationship between ecology, philosophy and ethics.  And in northern Australia, the sight of the bufo marinus, otherwise known as the “cane toad,” has become all too familiar.  Rick Shine, a professor of biology at the University of Sydney, studies ways to control the exploding cane toad population.