Differences in morphological complexity between icy and control environments: multi-objective means.

<p>This plot compares the ways in which the complexity of morphologies from icy environments differ from the complexity of morphologies evolved in the control environment under multi-objective selection. This plot is created from the multi-objective results by comparing the mean values across each trial's final Pareto front in each icy environment to the mean values across each trial's final Pareto front in a corresponding set of trials in the control environment. See <a href="http://www.ploscompbiol.org/article/info:doi/10.1371/journal.pcbi.1003399#s2" target="_blank">Results/Discussion</a> for details. All <i>p</i>-values calculated using the Mann-Whitney U test.