title: Social Evolution: Uneasy Lies the Head.
abstract: Inclusive fitness theory explains why workers in insect societies sometimes kill their queen. As the theory predicts, workers in a wasp species are more likely to act matricidally when more highly related to potential worker offspring.
authors.affiliation: School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich, UK. Electronic address: a.bourke@uea.ac.uk.
authors.forename: Andrew F G
authors.initials: AF
authors.lastname: Bourke
mesh_terms: D000818:Animals; D012098:Reproduction; D012919:Social Behavior; D014863:Wasps