In the past 20 years, researchers studying sound communication in ants have discovered a sort of ant-ernet, zinging with messages about lost relatives, great food, free rides for hitchhikers, caterpillars in search of ant partners, and impending doom.
Ants have an acoustic world of their own.
Meeting of the Entomological Society of America. Roces, F., and B. H lldobler. Cocroft, R. 1999. The inside story of insect song. Natural History .