Figure 2. Images and associated schematic diagrams of cleared and stained axial skeletons of chicken (Gallus gallus domesticus) embryos from developmental stages 28 to 30. A, stage 28 (day 5½ of incubation) right lateral view. B, stage 28 right lateral schematic. C, stage 28 posterior schematic. D, stage 29 (day 6 of incubation) right lateral view. E, stage 29 right lateral schematic. F, stage 29 posterior schematic. G, stage 30 (day 6½ of incubation) right lateral view. H, stage 30 right lateral schematic. I, stage 30 posterior schematic. Blue is cartilage and dark purple represents ossified tissue within the images. Light grey is cartilage and black represents ossified tissue within the diagrams. Scale bar, 1 cm.