Robert E. Shaw and colleagues showed that allometric variations in biological forms provide visual information about the spatial and temporal scale of biological objects (Mark, Todd, & Shaw, 1981; Pittenger & Shaw, 1975a, 1975b; Pittenger, Shaw, & Mark, 1979; Pittenger & Todd, 1983; Shaw, Mark, Jenkins, & Mingolla, 1982; Shaw & Pittenger, 1977, 1978). In these studies, form changes due to growt...