Since its inception, feminist studies have been characterized by the fruitful crossing of diverse intellectual disciplines, a critical analysis of the patriarchal codification of the knowledge received and the commitment to the development of a political project. An invitation that Rosi Braidotti takes up again in this ambitious book. The author starts from her philosophical conception of the sexual difference elaborated through the discussion with the work of Gilles Deleuze and Luce Irigaray. From this paradigm, severely prosecutes both the most complacent and mutilating readings of these authors and a whole series of concepts forged in the postmodern celebration of the dissolution of the subject, the absence of absolute certainties, the idealization of the transformations caused for the development of new technologies and the apparent escape of dualisms. Its objective is to find representations and figurations that really serve to transform social reality instead of being content with the fragile appearances and free celebrations of postmodern cultural criticism. In "Metamorphosis", ethics, sexuality, technology, meat, sustainability, desire and historical specificity are the vectors of the future of the political subject at the dawn of the millennium.