Table 1.

Expected scaling exponents for the three models from the form length, diameter or cross-sectional area (CSA) $\propto M_{\text{b}}^x$, where M_b is body mass and x is the scaling exponent of the best-fit power curve.

	length	diameter	CSA
more gracile than geometric	>0.33	<0.33	<0.67
geometric	0.33	0.33	0.67
elastic	0.25	0.375	0.75
static stress	0.20	0.40	0.80