Animal ethics has reached a new phase with the development of animal ethical thinking. Topics and problems previously discussed in terms of moral theories and ethical concepts are now being reformulated in terms of political theory and political action. This constitutes a paradigm shift for Animal Ethics. It indicates the transition from a field focused on relations between individuals (humans and animals) to a new viewpoint that incorporates the political dimensions of the relationships between human communities and non-human animals. Animals are no longer seen as a heterogeneous group of sentient beings or simply as species, but as part of a common good that is simultaneously human and animal. In order to participate in this new phase, bioethics will have to face a series of challenges that have hindered the integration of animal ethics within its field. It will also need the development of a new theoretical framework based on relations between communities of individuals. This framework will be able to highlight the ethical and political dimensions that arise from interactions between human communities, non-human animals and the ecosystem.