Fig 2. Differences in morphology of the pectoral girdle between cane toads from long-colonised (left, blue) and invasion-front populations (right, red) for 22 specimens.

The central image overlays the ones on either side to reveal points of divergence, in this case reflecting a transformation from a low (-0.09) to high (0.06) PC2 score, and a low (-0.06) to high (0.06) PC3 score.