title: Evolution: to seek out new worlds.
abstract: A recent study of stickleback 'ecomorphs' generated by independent speciation events in different freshwater lakes suggests that, despite historical contingency, natural selection can run in surprisingly similar ways on multiple occasions.
authors.affiliation: Department of Zoology, University of Oxford, Oxford, OX1 3PS, UK.
authors.forename: P H
authors.initials: PH
authors.lastname: Harvey
mesh_terms: D000818:Animals; D005075:Biological Evolution; D005399:Fishes / Q000033:anatomy & histology*; D005618:Fresh Water; D010641:Phenotype; D012641:Selection, Genetic; D013045:Species Specificity