YouTube - Horsehair worms are behavior-altering parasites that cause their hosts to seek sources of water, often drowning themselves in it, so the worms can emerge to reproduce. In this...
by Contributing Editor
YouTube - This insane video features a parasite coming out of a zombified praying mantis. Warning: serious nightmare fuel.
(Editor’s Note: The fact that we have two different videos of the same phenomenon could mean this condition isn’t nearly as rare as we’d want it to be!)