Figure 2.

Pair wise shape differences between four categories in grey and red shading, region of overlap in brown. A) young versus old: Adult C57BL/6J mice 8-14 weeks old (gray shape) vs. 16-23 weeks old (red shape) (exaggerated x12); B) adult C57BL/6J mice with smaller (gray shape) vs. larger (red shape) mandibles (exaggerated x11); C) wild-caught Dom Iran Ahvaz (gray shape) vs. first generation offspring raised in captivity (red shape) (exaggerated x15); D) mice fed soft diet (gray shape) vs. hard diet (red shape) (exaggerated x3). Shape changes were calculated using discriminant function analysis between the respective groups.

Boell and Tautz BMC Evolutionary Biology 2011 11:306   doi:10.1186/1471-2148-11-306
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