![]() | Social Evolution and Inclusive Fitness Theory: An Introduction Social behavior has long puzzled evolutionary biologists, since the classical theory of natural selection maintains that individuals should not sacrifice their own fitness to affect that of others. Social Evolution and Inclusive Fitness Theory argues that a theory first presented in 1963 by William D. Hamilton--inclusive fitness theory--provides the most fundamental and general explanation for the evolution and maintenance of social behavior in the natural world. James A. R. Marshall is professor of theoretical and computational biology at the University of Sheffield. |
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