In Brazilian rain forest, there is a type of fungi called Ophiocordyceps unilateralis. The special thing about this fungi is that it parasitic. Ants that come into contact with the fungus spores become infected, and within a week they begin behaving like zombies and leave the nest. The fungus species can infect an ant, take over its brain, and then kill the insect once it moves to a location ideal for the fungi to grow and spread their spores. The discovery was only on ants. What about other insects? Mammals? Human beings? Sounds scary though!