What are species? Are they objective features of the world? If so, what sort of features are they? Do everyday intuitions that species are real stand up to philosophical and scientific scrutiny? Two rival accounts of species' reality have dominated the discussion: that species are natural kinds defined by essential properties and that species are individuals. Unfortunately, neither account fully accommodates biological practice. In "Are Species Real"?, Slater presents a novel approach to this question aimed at accommodating the attractions to both realism and antirealism about species.

Reflections on the metaphysics and epistemology of classification from a distinguished group of philosophers. Contemporary discussions of the success of science often invoke an ancient metaphor from Plato's Phaedrus: successful theories should "carve nature at its joints." But is nature really "jointed"? Are there natural kinds of things around which our theories cut? The essays in this volume offer reflections by a distinguished group of philosophers on a series of intertwined issues in the metaphysics and epistemology of classification. The contributors consider such topics as the relevance of natural kinds in inductive inference; the role of natural kinds in natural laws; the nature of fundamental properties; the naturalness of boundaries; the metaphysics and epistemology of biological kinds; and the relevance of biological kinds to certain questions in ethics. Carving Nature at Its Joints offers both breadth and thematic unity, providing a sampling of state-of-the-art work in contemporary analytic philosophy that will be of interest to a wide audience of scholars and students concerned with classification.

Original essays on the metaphysics of time, identity, and the self, written by distinguished scholars and important rising philosophers. The concepts of time and identity seem at once unproblematic and frustratingly difficult. Time is an intricate part of our experience-it would seem that the passage of time is a prerequisite for having any experience at all-and yet recalcitrant questions about time remain. Is time real? Does time flow? Do past and future moments exist? Philosophers face similarly stubborn questions about identity, particularly about the persistence of identical entities through change. Indeed, questions about the metaphysics of persistence take on many of the complexities inherent in philosophical considerations of time. This volume of original essays brings together these two essentially related concepts in a way not reflected in the available literature, making it required reading for philosophers working in metaphysics and students interested in these topics. The contributors, distinguished authors and rising scholars, first consider the nature of time and then turn to the relation of identity, focusing on the metaphysical connections between the two, with a special emphasis on personal identity. The volume concludes with essays on the metaphysics of death, issues in which time and identity play a significant role. This groundbreaking collection offers both cutting-edge epistemological analysis and historical perspectives on contemporary topics. Contributors Harriet Baber, Lynne Rudder Baker, Ben Bradley, John W. Carroll, Reinaldo Elugardo, Geoffrey Gorham, Mark Hinchliff, Jenann Ismael, Barbara Levenbook, Andrew Light, Lawrence B. Lombard, Ned Markosian, Harold Noonan, John Perry, Harry S. Silverstein, Matthew H. Slater, Robert J. Stainton, Neil A. Tognazzini