Michael Ruse

Michael Ruse was a British philosopher known for his work in the philosophy of biology. He proposed the "fan" metaphor for evolutionary theory, suggesting that population genetics is at the core, with other branches like paleontology and systematics spreading out from it. Ruse argued that population genetics serves as a foundational causal theory for all aspects of evolutionary inquiry, unifying the field.1

However, this view has been challenged. Some argue that other branches, like paleontology, offer crucial insights into large-scale evolutionary changes that population genetics alone cannot explain. Additionally, the idea of a unified, hypothetico-deductive structure for evolutionary theory has been questioned, with some suggesting a "cluster of models" approach might be more accurate, akin to a mechanic's handbook with general strategies and unique solutions for specific problems.1