# The standard of evidence required to make the list is an official (or personal) university-affiliated website—or a publicly-accessible CV—that lists philosophy of biology as a primary research interest.
# Philosophers who have made contributions to the philosophy of biology but who do not list phil bio as an AOS/AOC are usually not listed.
# Affiliated, part-time, and emeritus faculty who work closely with graduate students should be labeled as such inside parentheses next to their names.
# Bioethics, environmental ethics, philosophy of neuroscience/cognitive science, philosophy of medicine, and history of biology—in and of themselves—are not counted as philosophy of biology.