The Autonomous Animal analyzes how the ideal of self-governance has shaped everyday life. Claire E. Rasmussen points up how the war on drugs rests on the perception that drug addicts are the antithesis of autonomy and thus must be regulated for their own good. Showing that the animal rights movement may challenge the distinction between human and animal, Rasmussen also examines the place of the endurance athlete in fitness culture, where self-management of the body is the exemplar of autonomous subjectivity.