There is a species of fungus that turns ants into "zombies" - Apparently.
The fungus Ophiocordyceps unilateralis infects carpenter ants, taking control of their bodies and causing them to climb to high locations before producing spores that can spread the fungus. This fungus essentially turns the ants into "zombies" to help spread its own spores. Studies have shown that this fungus can infect up to 90% of a colony, and can even cause the ants to bite onto a leaf before producing spores. This phenomenon was first discovered in the 2010s in the rainforests of South America.