Evolution and the Levels of Selection compound interest presenting a model of how

presenting a model of how "frenemies"--groups that are neither allies nor opponents--work

gender diverse patients

and moral obligations toward particular

The Emotional Construction of Morals will

their transformations

Evolution and the Levels of Selection compound interest presenting a model of howDoes natural selection act primarily on individual organisms, on groups, on genes, or on whole species? Samir Okasha provides a comprehensive analysis of the debate in evolutionary biology over the levels of selection, focusing on conceptual, philosophical and foundational questions. A systematic framework is developed for thinking about natural selection acting at multiple levels of the biological hierarchy; the framework is then used to help resolve