Test analysis: it is made by the friction of its legs. Transmitting information through sound is a form of "language" of insects. Although insects can't make sounds with their mouths, they can make full use of various vocal organs on their bodies to make up for this deficiency. Although insects don't have two ears with helix, they have extremely sensitive hearing organs (such as hearing hair, Jiang's hearing organ, tympanic membrane hearing organ, etc.). ). The special vocal organs of insects closely cooperate with the auditory organs to form a sound communication system and transmit various "codes" between the same species.
Testing center: information exchange between animals.