Add Yahoo as a preferred source to see more of our stories on Google. Horsehair worms can control a host's brain and steer it to water, where it drowns. Scientists have studied the worms' ...

Parasitic horsehair worms that dwell in the guts of praying mantises compel their hosts to walk to water and drown themselves. Now, scientists have discovered the secret to these worms' horrifying ...

For a praying mantis, eating the wrong insect can be a one-way ticket to a watery grave. Some of its typical bug prey contain horsehair worms, Chordodes fukuii, which grow in a mantid's gut—and ...

Parasites rarely settle for a simple relationship with their hosts. In fact, some of the most fascinating creatures in this category actively change how their victims behave. Among them are horsehair ...