Fig. 4. Bivariate plot of strain magnitudes (in µ) versus corresponding strain rates (in µ s^–1) for N=60 individual steps from river cooter turtles. All data are plotted as absolute values. Solid line reflects a linear least-squares regression of the pooled data (y=0.0326x+479.86). There was a significant positive correlation between strain magnitude and strain rate (P<0.001, r²=0.636).