What statement is true about fire ants in the united state?

Fire ants, particularly the red imported fire ant (Solenopsis invicta), are an invasive species in the United States, first arriving in the 1930s. They are notorious for their aggressive behavior and painful stings, which can cause allergic reactions in some individuals. Fire ants build large mounds in open areas and can disrupt local ecosystems by preying on native species and competing for resources. Their presence poses challenges for agriculture, urban areas, and public health.