This research examines how fungi form large interconnected cellular networks called syncytia, which allow them to grow, share resources, and adapt to their environment. These networks can range from microscopic to covering many acres of land, making fungi some of the largest living organisms on Earth. The study reveals that these fungal networks are more complex than previously thought, with different regions performing specialized functions despite sharing cellular contents. Impacts on everyday life: • Understanding fungal networks helps improve industrial production of important compounds like medicines and enzymes • Knowledge of fungal growth patterns assists in controlling harmful fungi that damage crops or buildings • Insights into fungal networks improve our understanding of soil health and forest ecosystems • This research could lead to better methods for growing beneficial fungi used in food production • The findings may help develop new strategies for treating fungal infections