title: Sympathy and similarity: the evolutionary dynamics of cooperation.
authors.affiliation: Faculty of Mathematics, University of Vienna, 1090 Vienna, Austria. karl.sigmund@univie.ac.at
authors.forename: Karl
authors.initials: K
authors.lastname: Sigmund
mesh_terms: D005075:Biological Evolution; D005145:Face; D005716:Game Theory; D006801:Humans; D010641:Phenotype