Agents and Goals in Evolution

Samir Okasha offers a philosophical perspective on evolutionary biology in Agents and Goals in Evolution. His focus is on 'agential thinking', which is a mode of thought commonly employed in evolutionary biology. The paradigm case of agential thinking involves treating an evolved organism as if it were an agent pursuing a goal, such as survival or reproduction, and treating its phenotypic traits as strategies for achieving that goal, or furthering its biological interests. Agential thinking involves deliberately transposing a set of concepts - goals, interests, strategies - from rational human agents to the biological world more generally. Okasha's enquiry begins by asking whether this is justified. Is agential thinking mere anthropomorphism, or does it play a genuine intellectual role in the science? This central question leads Okasha to a series of further questions. How do we identify the 'goal' that evolved organisms will behave as if they are trying to achieve? Can agential