Kin Selection

AS Griffin, University of Edinburgh, Edinburgh, UK © 2008 Elsevier B.V. All rights reserved.

Kin Selection Optimizes Inclusive Fitness General Application of Kin Selection

Kin Selection Explains Altruism Further Reading

Testing Kin Selection Theory

Natural selection is the process by which a trait can be favored because of its beneficial effects on fitness. Kin selection is an extension of natural selection theory that allows for the fact that a trait can be favored because ofthe beneficial effects on the fitness of relatives. The term itself was first coined by John Maynard Smith in 1964 although the idea that a gene could spread due to beneficial effects on relatives has been appreciated at least since the 1930s.

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