Sex vs Gender: A Biological Location for Gender, not Sex.

The origins of bodily sex are well understood, but consensus on origins for gender is missing. While gonadal sex and sexual orientation are accepted as emanating from genetic and hormonal templates, gender’s existence, when acknowledged, currently has so far emanated from either social origins or a nebulous ‘somewhere’ in the brain. Although sex-related behavior characteristics relative to the physicality of reproduction are dimorphic, other cognitive behaviors relative to reproduction have not been explicitly identified and presented. This article synthesizes necessary research to present a biological location of gender as opposed to sex. These cognitive behaviors can be differentially linked with reproduction throughout the lifespan. A physiological location for gender in the human phenotype may help advance this research further.