Fig. 3. Logarithmic plot of rotational inertia versus body mass for Iguana iguana (gray triangles), Varanus exanthematicus (filled circles) and murine rodents (open diamonds). Broken lines indicate extrapolation beyond the measured data set. The scaling relationships shown were determined from reduced major axis slopes. Rotational inertia values from two 9 g iguanas were averaged (mean 1.44x10^-5±5.01x10^-7 kg m²), as were those from four 10 g iguanas (mean 1.83x10^-5±1.45x10^-6 kg m²).