My understanding is that proximate explanations concern adaptive mechanism and that ultimate explanations concern adaptive rationale. Viewed in this light, the two kinds of explanation are quite distinct, but they interact in a complementary way to give a full understanding of biological adaptations. In contrast, Laland et al. (2013)—following a literal reading of Mayr (Science 134:1501–1506, 1961)—have characterized ultimate explanations as concerning any and all mechanisms that have operated over the course of an organism’s evolutionary history. This has unfortunate consequences, (...) such as allowing random drift to form the basis for ultimate explanations, and allowing proximate and ultimate explanations to bleed into each other until their distinction is meaningless. Here, I suggest Laland et al’s explanatory framework of “reciprocal causation” is not conducive to successful biological science, and that they have misunderstood key elements of the theory of Darwinian adaptation. (shrink)

The Formal Darwinism project probes the connections between the dynamics of natural selection and the design of organisms. Here, I explain why this work should be of interest to philosophers, arguing that it is the natural development in a long-running scholarly enquiry into the meaning of life. I then review some of my own work which has applied the tools of Formal Darwinism to address issues concerning the units of adaptation in social evolution, leading to a deeper understanding of the (...) adaptation of individual organisms. Finally, I sketch some directions Formal Darwinism to explore beyond the biological sciences, with a focus upon cosmology. (shrink)