Download or read book Evolution and the Levels of Selection [ebook] written by Samir Okasha and published by . This book was released on 2006 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: Does natural selection act primarily on individual organisms, on groups, on genes, or on whole species? This book provides a comprehensive analysis of the debate in evolutionary biology over the levels of selection, focusing on conceptual, philosophical and foundational questions.