Table 2.

Consistent small-world network properties across animals. The small-world (SW) metric was calculated as a ratio of the relative clustering coefficient (CC) to the relative characteristic path length (PL). Relative CC and PL were calculated as a ratio of the average values from the actual data (A) to that of randomly generated permutations (R). As small-world networks exhibit higher local clustering and similar path lengths compared to random networks, we would expect CC > 1 and PL = 1. A SW value significantly greater than 1 indicates that the network exhibited small-world properties. μ = mean, SE = Standard Error.

Animal	CC_A	CC_R	CC_A CC_R	PL_A	PL_R	PL_A PL_R	SW [CC_A/CC_R] [PL_A/PL_R]
1	0.123	0.101	1.221	0.853	0.841	1.013	1.206
2	0.063	0.049	1.281	0.891	0.888	1.003	1.277
3	0.094	0.069	1.365	0.889	0.887	1.002	1.362
4	0.055	0.047	1.161	0.912	0.912	1.000	1.161
5	0.129	0.106	1.213	0.843	0.825	1.021	1.187
6	0.120	0.075	1.596	0.884	0.881	1.004	1.590
μ	0.097	0.075	1.306	0.879	0.872	1.007	1.297
SE	0.013	0.010	0.065	0.011	0.013	0.003	0.066