You’ve heard about the Ebola virus outbreak, and you probably have a sense of how difficult it can be to identify, track, and control such contagions, what with so many travelers and so much cargo constantly criss-crossing the globe. When bizarre die-offs occur in nature, researchers must determine what kind of pathogen might be to blame, whether human activity had anything to do its emergence and spread, and if there’s anything that can or should be done about it. Hear from three biologists who’ve had to confront wildlife diseases head on: Drs. Karen Lips of the University of Maryland, Ben Miner of Western Washington University and Pete Raimondi of UC Santa Cruz.