It was long believed that the Dracunculus medinensis parasite, which causes guinea worm disease in humans, has a fairly simple life cycle: A person drinks water contaminated with copepods, or water ...

As a college undergraduate, I fell in love with parasitic worms. I was studying evolutionary biology, and I got caught up in the idea of organisms that made their world out of other organisms. I was ...

Certain parasitic worms survive by taking control of snail behavior. Instead of hiding, infected snails are driven into exposed areas where predators can easily find them. The worms manipulate ...