title: One-sided evolution or two? A reply to Ennos.
authors.forename: S A
authors.initials: SA
authors.lastname: Hodges
authors.forename: J B
authors.initials: JB
authors.lastname: Whittall
mesh_terms: D000818:Animals; D001516:Bees / Q000235:genetics; D005075:Biological Evolution; D001717:Birds / Q000235:genetics; D035264:Flowers / Q000235:genetics*; D007313:Insecta / Q000235:genetics; D008957:Models, Genetic