You might think of tapeworms as awful parasites that find their way into your intestine, grow as big as 50 feet long, and cause horrible gastrointestinal issues. But that's only one step of a larger infectious chain the tapeworm is a part of. The alien life-form doesn't only cause crippling stomach pain; it could also debilitate mental capacities if they find their way to the brain.
Warning: this gets pretty gross. More »
