Kin selection is the key to altruism.
Kin selection theory, also known as inclusive fitness theory, has been the subject of much debate and misunderstanding. Nevertheless, the idea that relatedness among individuals can drive the evolution of altruism has emerged as a central paradigm in evolutionary biology. Or has it? In two recent articles, E.O. Wilson argues that kin selection should no longer be considered the main explanation for the evolution of altruism in insect societies. Here, we discuss what these articles say about kin selection and how it relates to the theory. We conclude that kin selection remains the key explanation for the evolution of altruism in eusocial insects.
Foster
Kevin R
KR
Laboratory of Ecological and Evolutionary Dynamics, Department of Biological and Environmental Sciences, University of Helsinki, Helsinki 00014, Finland. krfoster@rice.edu
Wenseleers
Tom
T
Ratnieks
Francis L W
FL
D000533:Altruism; D000818:Animals; D001522:Behavior, Animal; D005075:Biological Evolution; D006927:Hymenoptera / Q000235:genetics / Q000502:physiology; D008954:Models, Biological; D012641:Selection, Genetic