 Most people ordinarily seem to think that sex and gender are coextensive: women are human females, men are human males. Many feminists have historically disagreed and have endorsed the sex/ gender distinction. Provisionally: ‘sex’ denotes human females and males depending on biological features (chromosomes, sex organs, hormones and other physical features); ‘gender’ denotes women and men depending on social factors (social role, position, behaviour or identity). The main feminist motivation for making this distinction was to counter biological determinism or the view that biology is destiny.