Aristotle on the Concept of Shared Life studies Aristotle’s understanding of the political character of human intimacy via an examination of the zoological frame informing his political theory. It argues that the concept of shared life, i.e. the forms of intimacy that arise from the possession of logos and the capacity for choice, is central to human political partnership, and serves to locate that life within the broader context of living beings as such, where it emerges as an intensification of animal sociality. As such it challenges a long-standing approach to the role of the animal in Aristotle’s thought, and to the recent reception of Aristotle’s thinking about the political valence of life and living beings.