 According to the first camp, remaining alive is both a necessary and a sufficient condition for the persistence of human animals. Human-animal persistence thus consists in the continuation of those processes constitutive of biological life. As Olson puts it, “one survives just in case one’s purely animal functions—metabolism, the capacity to breathe and circulate one’s blood, and the like—continue” (1997: 16). On this view, an animal’s life is understood as