Ophiocordyceps unilateralis is a parasitic fungus that primarily infects ants, particularly the Camponotini tribe. It manipulates the behavior of its host, causing the ant to leave its colony and climb vegetation. Once at an optimal height, the ant attaches itself to a leaf or twig, where the fungus can grow and reproduce. After the ant dies, the fungus sprouts from its body, releasing spores into the environment. This process helps the fungus spread and infect new hosts. Ophiocordyceps unilateralis is often studied for its unique ability to control host behavior, making it a fascinating subject in the field of parasitology.