Abstract

Presupposing little knowledge of biology, this introductory work focuses on the question of "whether or not biology is a science like the sciences of physics and chemistry." In so doing, it attempts to unify various philosophical issues arising in biology; namely, the relationships among Mendelian, population and molecular genetics, the connection between evidence and conclusion in evolutionary theory, the definitional basis for taxonomy, and the epistemological status of teleology. In support of his claim that "evolutionists have the hypothetico-deductive model as an ideal in some sense," Ruse finds certain fundamental laws in the theory, and he argues for the necessity of covering-law explanations which parallel those of the physical sciences. Further, he sees population genetics as being already "in fact axiomatized" and hence forming the deductive "core" for the entirety of evolutionary biology. Although the author recognizes the complexity of the practical problems which arise in his quest for a "logically rigorous deductive theory," he "can see no good theoretical reasons standing in the way of a deductive evolutionary theory," and he asserts that "the history of evolutionary theory seems to point toward an even greater exemplification of the axiomatic ideal." In short, biology is found to be within the same realm as physics.