Somehow, even after reports of foxes attacking chickens and numerous scat samples testing positive, Tasmanians were still not ready to accept that the European red fox (Vulpes vulpes) now calls their island home. It took a fox carcass discovered on a road in the Northern Midlands to really get the Aussie media riled up. Even so, I'm not sure the general populace of Tasmania is convinced - see this article from the Mercury and then these rather wishy-washy reader comments. As to why someone would think the carcass was *planted*, I have no idea - what possible benefit to the island could that have?
Interested readers will want to check out this previous ISW post about foxes in Australia.