Figure 4: Long-term evolution of female preferences.

While female preferences always increase in the haploid version of the model, they tend to diversify in the diploid version (shown here). Over long periods of time, three types of females coexist: females with a strong preference (p>1) for high-quality resources, females with a weaker preference (0<p<1) for such resources and females with a preference for low-quality resources (p<0).