My aim here is (1) to argue that the usual argument for thinking dysfunction has no place in a dispositionalist approach to functions is deeply flawed and (2) to develop a positive account of the explanatory role dysfunction attributions play in dispositionalist-style functional analysis. I will also argue that while my account undermines one common motivation for preferring an etiological over a dispositionalist approach, perhaps more interestingly, it also blurs the boundary between the two and opens a path to unifying (...) them. (shrink)

Research on animal behavior is typically organized according to a combination of two influential frameworks: Ernst Mayr’s distinction between proximate and ultimate causes, and Niko Tinbergen’s “four questions”. My aim is to debunk two common interpretive misconceptions about Mayr’s proximate–ultimate distinction and its relationship to Tinbergen’s four questions, and to offer a new interpretation that avoids both. The first misconception is that the proximate–ultimate distinction maps cleanly onto Tinbergen’s four questions, marking a boundary between Tinbergen’s evolutionary and survival value questions (...) versus developmental and mechanistic questions. The second is that Mayr’s proximate–ultimate distinction is meant to rule out the relevance of proximate causes to evolutionary explanations. I argue that neither is plausible given the text and Mayr’s philosophical aims, namely, to argue that evolutionary biology cannot be reduced to either the physical sciences or to other areas of biology. Through a reconstruction of Mayr’s anti-reductionist argument, I develop an interpretation according to which the proximate–ultimate distinction marks two ways that teleological reasoning can be naturalistically grounded in biology, corresponding to Mayr’s distinction between teleonomic and adapted systems. Mayr distinguishes reduction, which the proximate–ultimate distinction is meant to block, from analysis, through which he allows that proximate causes, causes that are neither proximate nor ultimate, and chance can all contribute to evolutionary explanations. I conclude by suggesting some ways in which the interpretation defended here reframes our understanding of Mayr’s disagreements with some evolutionary-developmental biologists. (shrink)

Research on animal behavior is typically organized according to a combination of two influential frameworks: Ernst Mayr’s distinction between proximate and ultimate causes, and Niko Tinbergen’s “four questions”. My aim is to debunk two common interpretive misconceptions about Mayr’s proximate–ultimate distinction and its relationship to Tinbergen’s four questions, and to offer a new interpretation that avoids both. The first misconception is that the proximate–ultimate distinction maps cleanly onto Tinbergen’s four questions, marking a boundary between Tinbergen’s evolutionary and survival value questions (...) versus developmental and mechanistic questions. The second is that Mayr’s proximate–ultimate distinction is meant to rule out the relevance of proximate causes to evolutionary explanations. I argue that neither is plausible given the text and Mayr’s philosophical aims, namely, to argue that evolutionary biology cannot be reduced to either the physical sciences or to other areas of biology. Through a reconstruction of Mayr’s anti-reductionist argument, I develop an interpretation according to which the proximate–ultimate distinction marks two ways that teleological reasoning can be naturalistically grounded in biology, corresponding to Mayr’s distinction between teleonomic and adapted systems. Mayr distinguishes reduction, which the proximate–ultimate distinction is meant to block, from analysis, through which he allows that proximate causes, causes that are neither proximate nor ultimate, and chance can all contribute to evolutionary explanations. I conclude by suggesting some ways in which the interpretation defended here reframes our understanding of Mayr’s disagreements with some evolutionary-developmental biologists. (shrink)

Debates about the concept of disease have traditionally been framed as a competition between two conflicting approaches: naturalism, on the one hand, and normativism or social constructivism, on the other. In this article, we lay the groundwork for a naturalistic form of social constructivism by dissociating the presumed link between value-free conceptions of disease and a broadly naturalistic approach; offering a naturalistic argument for a form of social constructivism; and suggesting avenues that strike us as especially promising for filling in (...) the details of an alternative approach and addressing the most obvious objections. (shrink)

In this dissertation I address three philosophical problems in the philosophy of biology united by the underlying, and interlocking, issues of the explanatory role of teleological, normative, and representational concepts in biology. In the first chapter, I argue that extant accounts of functions have foundered on a problem I dub the Dysfunction Dilemma, and I offer a way to move forward. Functions are of philosophical interest because the concept plays an important explanatory role in biology, and other sciences, but is (...) apparently teleological and normative –an item’s function is its end, purpose, or goal, and a dysfunctional item is one that fails to realize a particular norm, performance of its proper function. Extant accounts of function do not successfully capture both its explanatory import and its normative and teleological character, either painting dysfunction as conceptually incoherent or painting functions as epiphenomenal. I diagnose the source of the dilemma and offer an account of functional explanation which avoids it. In the second chapter, I defend the idea that genes, like words or concepts, have intentionality or representational/semantic content. First, I argue that while the standard motivation for this idea is mechanistic analogies between molecular mechanisms and digital computation, Ernst Mayr, one of the architects of the modern synthesis in biology, has provided an alternative and more defensible justification for taking the idea seriously. Parallel to the standard case for representational and computational theories of cognition, Mayr’s justification rests on the need to invoke representations to explain end-directed processes. I then put Mayr’s argument to work answering three kinds of objection to the idea that genes are representational: 1) Genetic representations are causally or explanatorily inert, 2) Genetic processes are too complex and context sensitive to be captured by representational concepts, and 3) Details of molecular biology undermine representational conceptions of genes. In the final chapter, I develop a historical and philosophical interpretation of Ernst Mayr’s distinction between proximate and ultimate causes and its relation to Niko Tinbergen’s "four questions." Both frameworks have been influential in the biological study of behavior and are typically presented as a single framework, with Mayr’s proximate-ultimate distinction corresponding to one of two axes dividing Tinbergen’s four questions. I argue that this interpretation misrepresents Mayr’s and Tinbergen’s philosophical positions. I offer a positive account of both frameworks and their relation to one another, and I argue that contrary to many critics, Mayr’s proximate-ultimate distinction, when properly interpreted, does not present a barrier to the project of integrating biological work on Tinbergen’s four questions. (shrink)