What is the function of the hairs worm?

The hairs worm, or horsehair worm, is a parasitic organism that primarily infects insects and other arthropods. Its main function is to manipulate the behavior of its host, often compelling it to seek water, where the worm can emerge and continue its life cycle. Once the host enters the water, the worm exits, leaving the host to die. This unique life cycle enables the hairs worm to reproduce and spread effectively within aquatic environments.