2009/06/15 by Elliott Sober · 1 citation
Arts and Humanities · Biochemistry, Genetics and Molecular Biology · #Evolution and Science Education #Philosophy and History of Science #Evolution and Genetic Dynamics
paper · doi:10.1073/pnas.0901109106
openalex publication_date 2009/06/15 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/15
After clarifying how Darwin understood natural selection and common ancestry, I consider how the two concepts are related in his theory. I argue that common ancestry has evidential priority. Arguments about natural selection often make use of the assumption of common ancestry, whereas arguments for common ancestry do not require the assumption that natural selection has been at work. In fact, Darwin held that the key evidence for common ancestry comes from characters whose evolution is not caused by natural selection. This raises the question of why Darwin puts natural selection first and foremost in the Origin.