Photos via LiveScience Three years ago, after a young Peruvian girl bathed in a river, she began to experience an odd sensation in the her nose--like something was moving back there... And it turns out there was. After visiting with a local physician about the problem, researchers realized that the girl had inadvertently 'discovered' a rather nasty species of leech, previously unknown to biologists. According to them, the lee...Read the full story on TreeHugger