Figure 2
Q-Q plots of length (a) and diameter (b) of terminal branches conditional on species and branch_type. Normality is only rejected for human terminal branches, with a p-value of 0.04. The distribution of mouse length is especially close to the theoretical one (p-value 0.98). The plots show quantiles of the sample distributions on the Y axis and the quantiles of the standard normal distribution on the X axis. 95% KS confidence bands are shown; the hypothesis of normality is rejected at the 5% level if the sample does not fall completely within the bounds. Distributions that deviate little from normality have the points lying close to the straight line.
