  Feminist philosophy of biology bears much in common with non-feminist philosophy of biology. Non-feminist philosophy of biology is highly interdisciplinary and has unclear disciplinary boundaries. Major contributors include scientists as well as philosophers. There are two general and often closely related approaches to the practice of philosophy of biology. First, philosophy of biology uses philosophical methods to address topics of central importance in the biological sciences, such as natural selection, fitness, adaptation, and the nature of genes. Second, philosophy of biology addresses central topics in the philosophy of science, such as reductionism, laws of nature, and theory change, from the perspective of the biological sciences instead of physics as is more traditional in philosophy of science. Philosophy of biology is often informed by a naturalistic approach, meaning that the work is closely tied to the actual history and practice of the science in question. It is not uncommon for philosophers of biology, at least at some point during their careers, to become significantly involved with the science itself, either in terms of conducting biological research or collaborating with biologists on research or pedagogical projects.