Philosophical anthropology aims to discover what makes us human, but it has produced accounts that exclude some members of our species. It relies often on a non-naturalistic “philosophy of consciousness” and locates humanity in the cognitive capacity to objectively represent things, to reason teleologically and use tools, to use symbols and language, or to be self-conscious and question existence. This work pursues an alternative, thoroughly naturalistic philosophical anthropology in the tradition of Arnold Gehlen. Combining Gehlen’s theory of our behaviorally-detached and (...) culturally-determined impulses with Maurice Merleau-Ponty’s views on intersubjectivity, affect, sexuality, and social institutions, the present work locates the human within the unique structure of human feeling. This produces a truly inclusive account of “the human as the other” or Homo alter. The human is deeply and thoroughly dependent on affective, bodily, communicative bonds, in which others appear as sources of meaning, norms, pleasure, and approbation and disapprobation. This socio-biological account of the human makes institutionality central to our form of life but rejects any political anthropology that attempts to use human nature to prescribe a necessary form to institutions such as the home. Such a social and affective account of the human produces a novel approach to the affect of shame as the feeling of institutional rejection. Ultimately, this work uses philosophical anthropology to combat dehumanization. Our unique form of dependency on others and institutions is present, for example, in infants and the severely disabled who may not possess the forms of consciousness and cognition that traditionally are identified with being human. (shrink)