Social work is a human-centric social science that by design does not traditionally look beyond an anthropocentric perspective of practice, and this has consequences for nonhuman animals. Indeed, certain aspects of social service are oppressive towards nonhuman animals by advocating for the primacy of human rights and self-determination, which in a number of instances actively discriminates against nonhuman species through various forms of exploitation including (but not limited to) factory farming, hunting, entertainment, and ritual slaughter. This paper is a review of the curious relationship that social work has in regards to nonhuman animals in the United States, and how this dynamic can encourage and engender widespread forms of discrimination towards these sentient beings. Animal ethics, animal welfare, and speciesism are examined in the context of social work ethics, principles, and practice. Considerations are proposed and discussed for finding common ground between the NASW Social Work Code of Ethics and animal ethics, with the purpose of allowing for the social work profession to develop a more inclusive value system, one which