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Liminal Animals

Liminal animals are animals that live around people or in human built environments, but are not domesticated (or formerly domesticated). Examples include mice, rats, pigeons, foxes, raccoons, and coyotes, when they live in urban or suburban environments. Liminal animals do not fit neatly into the norms of consideration and treatment that have been developed for companion animals, wild animals, working animals, or agricultural animals. This project aims to develop an ethic for liminal animals – i.e. frameworks for and approaches to ethical evaluation for cases involving liminal animals.

Project Outputs

Sandler, R., & Palmer, C. (2025). The emerging movement against wild animal suffering and its potential implications for conservation. Oryx59(4), 532–541. doi:10.1017/S003060532510152X

Abstract: Historically, conservation has focused on species, ecological communities, systems and processes, rather than on individual animals. Even among advocates for compassionate conservation, the focus on animal welfare or animal rights only relates to conservation activities. However, in recent years the idea of managing ecosystems primarily to improve wild animal welfare has been gaining traction among animal ethicists and animal welfare researchers. Managing ecosystems for animal welfare is generally antithetical to management to support ecological and evolutionary processes, since essential features of those processes, such as predation, privation and competition, are sources of animal suffering. Our aim in this paper is not to defend the proposal that ecosystem management should focus primarily on improving wild animal welfare. It is, rather, to situate this proposal in relation to concerns about wild animal welfare expressed by the public and conservation biologists; to connect it to the rise of subjectivist theories of animal welfare; to introduce the ethical arguments used to support elevating the importance of individual wild animals; to explain the advocacy context; to outline potential implications for conservation; and to review critiques of taking a wild animal welfare focus in ecosystem management.

Wells, M.; Simmons, S.; Klimas, D. (2017). Liberty for Corvids. Public
Affairs Quarterly 31 (3):231-254. https://www.jstor.org/stable/44732794
Abstract: We argue that at least some corvids morally ought to be granted a right to bodily liberty in the US legal system and relevantly similar systems. This right would grant immunity to frivolous captivity and extermination Implementing this right will require new legislation or the expansion of existing legislation including the elimination of various “pest” claus This paper proceeds in three parts. First, we survey accounts of the mor grounds of legal rights. Second, to establish an overlapping consensus sup porting corvid bodily liberty rights, we survey the empirical literature corvid cognition. Third, we illustrate what a corvid right to bodily liber might look like, by looking to recent developments in animal law, as we as previous advocacy on behalf of primates and cetaceans.

Project Lead

Mark Wells is an associate teaching professor of philosophy. He has co-authored works in animal ethics such as “Liberty for Corvids” and “A Non-Ideal Argument Against FBOMS (Final Barred Owl Management Strategy)?” as well as papers on a wide variety of topics in applied ethics and ethical theory. In his philosophical work, he focuses on the ways in which ethical theorizing can inform good personal, organizational, and public policy. Recently, his work has focused on the theoretical usefulness of “moral status” as a concept in animal and environmental ethics and how words like “vermin” and “pest” can function as slurs, even when applied to animals.

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