Common Sense: Sex-Similarity in Sensory Afferents Despite Extreme Motor Connectivity Differences in the Vocal Organ of a Sexually Dimorphic Songbird

How zebra finch songbirds acquire songs parallels human language acquisition, but is sexually dimorphic: males sing; females do not. We analyzed synaptic connections between brain and voice box in males and females. We found support of a synaptic correlate of suppression of female song ability in this species.