This research documents the surprising discovery of leaf-cutting ants collecting mushrooms in Argentina, which is unusual because these ants typically only collect plant material. This observation provides new insights into how ants might have evolved their farming behavior. Impacts on everyday life: • Helps us understand how complex agricultural systems evolve in nature • Provides insights into the development of symbiotic relationships • Demonstrates how species can adapt their behavior in unexpected ways • Could inform sustainable agricultural practices through understanding natural farming systems • Highlights the complexity of natural ecosystems and species interactions