Deep-sea parasites are body snatchers, intestinal hitchhikers, and chest-bursters, but something about them is still alluring to Lauren Dykman. To date, not many deep-sea parasites have been studied as scrupulously as their hosts. What’s odd is that even in the most extreme conditions, marine parasites have found a way to survive—even thrive. While she’s not the first to study marine parasites, Dykman says it’s still a wild and under-researched frontier in marine science. As WHOI plots new expeditions to deep-sea vent sites along mountain ranges like the East Pacific Rise, only time will tell how many more she’ll find.