Abstract
A method which co-evolves genotypes of the behavior and morphology is effective in creating the artificial creature. Specially, the diversity of the morphology is important for use of evolutionary computing, because the morphology needs to change itself due to a given task. In the paper, we focus on the diversity of the morphology of the artificial creature, and aim to create the best artificial creature by using evolutionary computing in 3D physical surroundings. Specially, we investigate a effect for the diversity of the morphology by the ristricting the genotype.