Sex-specific characteristics of the fruit fly courtship behavior are not specified by a single binary switch, but as a combination of traits that are modularly specified by separable genetic switches.

A microphone array enables the vocal contribution of each socially interacting individual to be quantified, and reveals that vocalizations are exchanged between the sexes during mouse courtship.

Functional dissection of a cluster of male-specific neurons in Drosophila reveals a neuronal circuit regulating male courtship in accordance with the internal drive state.

Anatomical, behavioral and physiological evidence suggests that the aPN1-vPN1-pC1 pathway serves as a labeled line for the processing and transformation of courtship song in male Drosophila.

Skeletal muscle performance sets the course of rapid speciation by defining the evolutionary trajectory of reproductive behavior.

Persistent activity of dopaminergic neurons in a mushroom recurrent circuit lays the foundation for courtship memory in Drosophila.

Male-type aggressive and courtship behaviors of the fruit flies are differentially specified by two sex-determining genes, providing a substrate for the evolution to sculpt these two behaviors independently.

Quantitative behavioral assays and modeling show that acoustic duetting in Drosophila during courtship relies on the detection of precisely timed cues via multiple sensory channels.

The balance between sleep and sex drives determines whether male flies sleep or court, and a subset of octopaminergic neurons interact with the Fruitless-expressing courtship circuit to suppress sleep for sustained courtship.

In situ measurements of muscular twitch speed reveal one of the fastest vertebrate limb muscles on record, which evolved in association with extravagant courtship displays that include rapid limb movements.