Editors Aaltola and Hadley identify the motivation for this collection of essays as the fact that there is very little innovation in the field of animal ethics; much fits the description of 'moral extensionism,' or the extension of existing moral and political theories across species. The editors present works that examine the metaethical and meta-philosophical issues in animal ethics, thereby asking unaddressed questions. In the book's 12 essays, various contributors focus on the assumptions behind the critique of morally relevant relationships; offer an application of biosemiotics, or living organisms’ use of signs; and utilize Merleau-Ponty’s embodied subjects to discuss intersubjectivity with non-human animals. Authors also examine the epistemological and ethical difficulties regarding speaking for animals, argue there is a shortsightedness in basing animal ethics in rights, and consider the moral role of disgust with animal abuse. Finally, Aaltola ends with a convincing explanation for how and why humans are able to paradoxically love some animals and eat others. . . .Readers will find original additions to the animal ethics discussion. Summing Up: Recommended. Upper-division undergraduates through researchers and faculty.