Marguerite Deslauriers here aims to construct a coherent picture of Aristotle's views on sexual and gender-based difference and to show the extent to which his views on female biology and women's role in politics are causally connected. Without exculpating Aristotle from charges of misogyny, Deslauriers contextualizes his explanations of the role and origin of female animals in his biology and the role of women in his political philosophy; she shows how Aristotle developed these views and the importance they hold for his wider philosophical commitments.