In this chapter, I contend that Nietzsche’s robust critiques of human exceptionalism and the “humanization of nature [Vermenschlichung der Natur]”, as well as his positive, proto-ecocentric vision of the “naturalization of humanity [Vernatürlichung des Menschen]”, afford contemporary environmental philosophy a novel perspective from which to critique anthropocentric conservation ideologies (according to which nature conservation ought to be motivated by the interests and aims of humanity, especially economic development and prosperity). Importantly, I also argue that Thus Spoke Zarathustra is the work (...) in which Nietzsche’s positive vision appears most conspicuously, as suggested by Zarathustra’s relationship to the natural world and exhortations to “remain faithful to the earth.” -/- As Nietzsche’s critique of anthropocentrism reinforces his positive project, I will begin by detailing Nietzsche’s rejection of human exceptionalism (section 1). In addition, I will analyze Nietzsche’s critique of the “humanization of nature” (KSA 10:10[43]; 10:13[20]; 12:1[29]), emphasizing specific pernicious projections of human values onto the other-than-human world. Although these themes appear throughout Nietzsche’s body of work, they are central to Zarathustra. -/- After describing Nietzsche’s critical project, I present his positive, proto-ecocentric vision for humanity’s re-naturalization, one he most emphatically endorses and fleshes out in Zarathustra (section 2). This positive vision can be found in his calls for the human being to become more natural and to cultivate a noble reverence and gratitude for the natural world so that we may learn from it about ourselves—rather than falsifying it for our ends and then insisting that we are part of this other, falsified nature. Only when we can see ourselves as natural beings—specifically, as living beings willing power, embedded in a world with other living beings who do the same—can we identify tasks and pursue aims that empower and strengthen us. In Nietzsche’s view, this recognition results only from an attunement to the other-than-human world. Finally, after adding a few important caveats to proto-ecocentric strains in Nietzsche’s thought, I briefly explain the contributions his thought might make to contemporary environmental philosophy and policy (section 3). (shrink)