Figure 2 . Principal Component Analyses. Shown here are the two-dimensional comparisons of all Principal Components (PC) across 4 groups of bee foragers. The scatterplots (bottom-left hand side of the picture) show datapoints as they are represented with any 2 PCs. Each scatterplot corresponds to two PCs, indicated at the top of the figure and on the right: for example, the plot in the first column and fifth row corresponds to PC1 (top ID)) and PC5 (right-side ID). The diagonal shows the distributions for each PC over each group in the experiment (Dancers perceiving Long distance (red), Dancers perceiving Short distance (Green), Non-Dancers perceiving Long distance (Blue), and Non-Dancers perceiving Short distance (Purple)). The upper-right hand side of the figure shows the correlations between each of the 4 groups according to the corresponding PC. These values also indicate the direction (if any) of the groupwise trends in the scatter plots. Values with stars show statistical significance and *, **, *** correspond to p ≤ 0.05, p ≤ 0.01, and p ≤ 0.001, respectively.