 Most work in the philosophy of biology is self-consciously naturalistic, recognizing no profound discontinuity in either method or content between philosophy and science. Ideally, philosophy of biology differs from biology itself not in its knowledge base, but only in the questions it asks. The philosopher aims to engage with the content of biology at a professional level, although typically with greater knowledge of its history than biologists themselves, and fewer hands-on skills. It is common for philosophers of biology to have academic credentials in the fields that are the focus of their research, and to be closely involved with scientific collaborators. Philosophy of biology’s naturalism and the continuity of its concerns with science itself is shared with much other recent work in the philosophy of science, perhaps most notably in the philosophy of neuroscience (Bechtel, Mandik et al. 2001).