Seismic signals are one of the most ancient and taxonomically widespread communication signals among animal species. They are displayed by species as varied as elephants, red-eyed tree frogs and Salticid spiders, to cite a few. I am studying this mode of communication in Drosophila where it is important for reproduction. I will present our findings on the signal's propagation in natural substrates where flies feed and court and how Drosophila females' leg sensory structures detect the substrate-borne signals. I will also show you divergences of this mode of communication in Drosophila species, including pests.