The zombie-ant fungus has both captivated and terrified the scientific community with its bizarre and macabre ability to control the behavior of ants. This fascinating and rare phenomenon of infecting and manipulating its hosts has generated many questions about the origin and impact of the fungus.
Zombie-ant fungus, also known as Ophiocordyceps unilateralis, infects ant colonies in tropical rainforests and assumes control of their behavior. Upon infection, the fungus works its way into the ant's brain and suppresses its regular activity, causing it to become a "compulsive zombie."
The fungus can steer the ant to climb to the underside of a leaf above the forest floor and lock its mandibles onto the vein. The ant is then left suspended in the perfect environment for the fungus to germinate and spread.
Studies have shown that the fungus produces zombie-inducing chemicals, which can disrupt an ant's neurotransmitters and cause them to act unpredictably and become more inactive.
Once the fungus takes over an ant, it begins to manipulate its every move, from walking towards a safe place where it could germinate to biting onto a leaf and locking its mandibles onto the vein.
Ophiocordyceps unilateralis grows out of the ant's head and releases clouds of spores, spreading in the wind and infecting other ant colonies.
The fungus can communicate with the ant's body at a molecular level. It targets the same receptors that regulate stress, allowing the fungus to control ant behavior.
The fungus provides nutrients to the ant to increase its lifespan, allowing time for spores to spread.
The fungus can even silence the ant's alarm calls, which stops other healthy ants from removing the infected individual.
Some studies suggest that zombie-ant fungus can increase the ant's immune system, suggesting that the fungus is adapted to evade the ant's natural defenses.
Research has shown that the fungus can rely on electricity generated by its host's muscles, damaging them and immobilizing the ant, so it becomes a perfect host for the fungus.