Nuwer interviews Kevin Lafferty, research ecologist, about parasites. Lafferty wasn't interested in parasites until he was asked to be a teacher's assistant for a parasitology course. He hadn't taken the course but he became fascinated when they brought in fish, sharks and invertebrates for the students to dissect. As a marine biologist, he thought he knew pretty much everything about these organisms. Yet no one ever told him to look inside them for parasites. When they did, they found lots of species. It strucks him that an entire component of his ducation had been neglected. At that point he decided that there's a real need to know more about the role of parasites.
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