title: Critique of directionality theory.
authors.affiliation: Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA. ldemetrius@fas.harvard.edu
authors.forename: Lloyd
authors.initials: L
authors.lastname: Demetrius
authors.forename: Axel
authors.initials: A
authors.lastname: Kowald
authors.forename: Martin
authors.initials: M
authors.lastname: Ziehe
mesh_terms: D000818:Animals; D005075:Biological Evolution; D003198:Computer Simulation; D008954:Models, Biological; D011157:Population Dynamics; D011158:Population Growth