Some articles on capabilities approach and animals

Stanford encyclopedia on capabilities approach: https://plato.stanford.edu/entries/capability-approach/#BasCap

Ilea, Ramona. “Nussbaum’s Capabilities Approach and Nonhuman Animals: Theory and Public Policy.” Journal of Social Philosophy 39 (2008): 547-63. Web. 12 Mar. 2010.

Schinkel, Anders. “Martha Nussbaum on Animal Rights.” Ethics and the Daws: The Right to Healthful Food 63 Environment 13 (2008): 41-69. Web. 12 Mar. 2010.

Peter Singer, A Response to Martha Nussbaum; Reply to Martha Nussbaum, 'Justice for Non-Human Animals', The Tanner Lectures on Human Values, November 13, 2002
https://www.utilitarian.net/singer/by/20021113.htm

Capabilities and Environmental Justice: Animals, Ecosystems, and Community Functioning1
David Schlosberg, Professor Department of Political Science Northern Arizona University
https://www.capabilityapproach.com/pubs/Schlosberg07.pdf