Control over copulation duration is a potentially important generator of sexual conflict that has received little … copulation duration. Males have spines on their intromittent organs that puncture the female reproductive tract, and females kick … sustain are more severe. Males supposedly use the spines as anchors to prolong copulation duration, and females kick to …

significantly shorter duration than control females, while egg load had no effect on copulation duration. These results suggest that …

Many sperm competition studies have identified copulation duration as an important predictor of paternity. This result … is often interpreted as a sperm transfer effect--it is assumed that sperm transfer is limited by copulation duration … which a correlation between copulation duration and paternity has been implicated in the evolution of a rare male self …