Males preferences. Male preferences for female stimuli that presented different sizes of the pelvic fin (100% vs. 50%, 50% vs. 0% and 100% vs. 0% pelvic fin size). The amount of time (means + S.D.) males spent in the association zones in three experimental treatments with the female stimulus that either showed a larger or a smaller pelvic fin size is shown. A linear mixed effect model was fitted (see the text for details). * p < 0.05.