Fig. 3.

Comparison of inter-species build parameters under low- and high-humidity conditions. Each box represents a set of n=9 experiments; box boundaries show quartiles; whiskers show 1.5× interquartile range. Given the low sample size, we used an exhaustive permutation test to check for differences in means (https://www.github.com/lrkrol/permutationTest). Under low-humidity conditions, the data demonstrate significant differences in area (P=0.001), mass (P=0.009) and volume (P=0.003) between the two species. Under high-humidity conditions, our tests revealed no differences below threshold significance (P>0.05 for all metrics; Table S1).