title: Social evolution: cooperation by conflict.
abstract: A recent study suggests that aggression between wasps depends upon the costs and benefits of fighting, as determined by the position of individuals in a dominance hierarchy.
authors.affiliation: Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, West Mains Road, Edinburgh EH9 3JT, UK. T.Innocent@sms.ed.ac.uk
authors.forename: Tabitha M
authors.initials: TM
authors.lastname: Innocent
authors.forename: Stuart A
authors.initials: SA
authors.lastname: West
mesh_terms: D000374:Aggression; D000818:Animals; D005260:Female; D008297:Male; D012919:Social Behavior; D012930:Social Dominance; D014863:Wasps