Introductory Section. The evolutionary origin of multimodal synchronization and emotional expression / Primate precursors to human language : beyond discontinuity / Brain networks for the encoding of emotions in communication sounds of human and nonhuman primates / Different Mammalian Taxa. Sound communication in house mice : emotions in their voices and ears? / Vocalizations as indicators of emotional states in rats and cats / Beyond echolocation : emotional acoustic communication in bats / Emotional communication in Aftican elephants (Loxodonta africana) / Toward the evolutionary roots of affective prosody in human acoustic communication : a comparative approach to mammalian voices / Emotional communication in monkeys : music to their ears? / Charles T. Snowdon and David Teie -- Nonspeech Human Vocalizations. Infant crying and the synchrony of arousal / Understanding spontaneous human laughter : the role of voicing in inducing positive emotion / Vocal expression of emotions in laughter / Human Prosody. An integrative model of brain processes for the decoding of emotional prosody / On the orbito-striatal interface in (acoustic) emotional processing / The role of dopamine in perception and expression of emotional communication in Parkinson's disease / Vocal affect expression : problems and promises / Music. Toward a neurobiology of musical emotions / Acoustically mediated emotional contagion as an across-species homology underlying music processing / A contribution to the evolutionary basis of music : lessons from the chill response / Summary : Where to Go? A cross-taxa concept of emotion in acousitc communication : an ethological perspective