Zombie Ants!

Yes, dead ants reanimated by a fungus in their brain. Luckily, it is not transferable to humans, as far as we know. But stay alert.

http://www.news.com.au/technology/sci-tech/tropical-fungus-in-thailand-rainforest-taking-transforming-carpenter-ants-into-walking-zombies/story-fn5fsgyc-1226052753828