Figure 4.

Photographs, SEM images, and AFM images illustrating the association between glossiness and smoothness of eggshell surface texture. Light areas in the eggshell photographs are reflections of a lamp above that illustrate the glossiness of eggshells. Measurements of glossiness are presented in figure 2 and table 1. Scale bars: left column 5 mm; middle column 10 µm. Note that the height colour map scales differ between the chicken and tinamou eggshell AFM images. (Online version in colour.)