Humans can transmit and receive identical linguistic signals, and so reproduce any linguistic message they understand. This allows for the interlocutory roles of ‘speaker’ and ‘listener’, within the context of linguistic communication, to alternate between the conversation’s participants via turn taking.
This can be contrasted with more limited forms of animal communication such as the mating ritual of stickleback fishes, where male and female fishes perform gender-distinct courtship motions, which the opposite sex cannot reproduce.