title: Sexual dimorphism: why the sexes are (and are not) different.
abstract: Sex differences often call sexual selection to mind; however, a new damselfly study cautions on being too hasty, and implicates viability selection in the evolution of male and female colouration.
authors.affiliation: Centre for Ecology and Conservation, University of Exeter, Cornwall campus, Penryn, Cornwall TR10 9EZ, UK. D.Punzalan@exeter.ac.uk
authors.forename: David
authors.initials: D
authors.lastname: Punzalan
authors.forename: David J
authors.initials: DJ
authors.lastname: Hosken
mesh_terms: D000220:Adaptation, Biological; D000818:Animals; D003116:Color; D005260:Female; D007313:Insecta / Q000033:anatomy & histology* / Q000502:physiology; D008297:Male; D052586:Mating Preference, Animal; D012641:Selection, Genetic; D012727:Sex Characteristics