Male crickets create sounds that we call "chirps" by rubbing one wing against the other. if another male presents himself to the singing male, the two males will fight. first they interlock antenna, then they spread their jaws, and finally they wrestle. is/are examples of communication the initial song; because it is an intraspecific signal interlocking antenna and spreading jaws, but not wrestling; because communication is no longer needed when the two crickets are physically in contact the initial song and the response of the second male cricket arriving in the area; between the two crickets.