Behavioral and Brain Sciences

Short Communication

Sperm competition theory offers additional insight into cultural variation in sexual behavior

Aaron T. Goetz a1 and Todd K. Shackelford a1
a1 Department of Psychology, Florida Atlantic University, Davie, FL 33314


Schmitt recognized that research is needed to identify other factors associated with sex ratio and with sociosexuality that may explain cross-cultural variation in sexual behavior. One such factor may be the risk of sperm competition. Sperm competition theory may lead us to a more complete explanation of cultural variation in sexual behavior.