From factory farming to invasive experimentation to the use of animals in the entertainment industry, human interactions with animals frequently involve unjustifiable forms of exploitation, violence, and death. Activists have put significant effort into limiting or abolishing such problematic forms of human-animal interactions. For philosopher Matthew Calarco, this critical focus on restrictions, while vitally important, does not go far enough in reforming our relationships with animals. Instead, we need to interrogate the values that structure our lives as a whole to ask: What might a good life in common with animals look like. The Three Ethologies articulates positive ideals of human interactions with animals and offers an affirmative approach to constructing human-animal relations anew. Calarco develops three distinct but interrelated ethological lenses to this end: 1 ethos as individual character-the self; 2 ethos as shared practices and relations-the social; and 3 ethos as the typical dwelling places of animals and human beings-the environment. This three-pronged framework leads us to an inspiring vision of how ethological living can help us to reimagine philosophical ideals of goodness, truth, and beauty.