FACT #5 — Leafcutter ants are fungus farmers (seriously)
FACT #5 — Leafcutter ants are fungus farmers (seriously)
Leafcutter ants don’t cut leaves because they love salad. They cut leaves to feed a fungus they grow underground—because the fungus is the real food source for the colony. If you’ve ever seen a line of ants carrying leaf pieces like green flags, you’re basically watching an underground farm getting stocked up. https://asm.org/articles/2017/september/the-leaf-cutter-ant-s-50-million-years-of-farming
The fungus they raise is commonly called Leucoagaricus gongylophorus (you’ll also see it discussed under closely related names in the scientific literature). The fungus makes tiny nutrient-packed “food pods” called gongylidia, and the ants harvest those to feed the colony (especially the larvae). That’s the trade: ants bring plant material, the fungus turns it into usable nutrients.
FACT #4 — The “zombie ant” fungus can control an ant’s behavior
FACT #4 — The “zombie ant” fungus can control an ant’s behavior
Some fungi don’t just kill insects — they steer them. In one of the most famous examples, a fungus in the Ophiocordyceps unilateralis group infects certain carpenter ants and can trigger a weird set of behaviors that ends with the ant leaving the colony, climbing up plants, and getting stuck in place. That “stuck” moment helps the fungus finish its life cycle. https://pmc.ncbi.nlm.nih.gov/articles/PMC3118224/
Here’s the part people usually get wrong: it’s not like the fungus is “driving the ant like a remote-control car” from inside the ant’s brain. In fact, researchers have found that in these infections the fungus can spread through much of the ant’s body without invading the brain, and evidence suggests a lot of the control may happen through chemicals and direct effects on muscles (more like a puppet pulling strings than a little pilot inside the head). https://www.psu.edu/news/research/story/zombie-ant-brains-left-intact-fungal-parasite