2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/16175We suggest to simulate evolution of complex organisms constrained by the sole requirement of robustness in their expression patterns. This scenario is illustrated by evolving discrete logical networks with epigenetic properties. Evidence for dynamical features in the evolved networks is found that can be related to biological observables.5 pages RevTeX, 4 figures PostScript, submitted to Proc R. Soc. London BStatistical MechanicsDisordered Systems and Neural NetworksAdaptation and Self-Organizing SystemsBiological PhysicsMolecular Networkstext