Fig. 2

Ontogenetic trajectories and deformation grids at the extremes of each Principal Component axis. The shapes are not corrected for size. SB = SB × SB offspring, PL = PL × PL offspring, F1 = firs-generation hybrids. The circles are the mean shapes of each cross type at a given developmental time point (from left to right: hatching, 20 days post hatching, onset of exogeneous feeding, 3 months after the onset of exogeneous feeding)