Ten 10,000-ms long simulations were run for each value of (A–D), (E–H), and (I–L) tested. (A, E, I) Episode duration. (B, F, J) Inter-episode interval. (C, G, K) Average tail beat frequency during each swimming episode. (D, H, L) Minimum coefficient of the cross-correlation of left and right muscle. The minimum was taken between −10 and 10 ms time delays. Each circle represents a single swimming episode (A, E, I), inter-episode interval (B, F, J), or a single run (all other panels). Each run is color-coded. Runs with only one side showing activity are not depicted in (D and H). Asterisks denote significant differences detected using a one-factor ANOVA test. Statistics: (A) F5,1253=2.5, p=0.03. (Note that there were no pairwise differences detected). (B) F5,1253=11.2, p=1.3×10−10. (C) F5,54=1.9, p=0.11. (D) F5,54= 14.5, p=5.2×10−9. (E) F5,1253=8.7, p=3.8×10−8. (F) F5,1253=118.1, p=2.0×10−102. (G) F5,54=4.0, p=0.004. (H) F5,54=3.2, p=0.014. (I) F5,1400=13.5, p=6.8×10−13. (J) F5,1400=74.5, p=2.5×10−69. (K) F5,53=1.3, p=0.30. (L) F5,53=0.8, p=0.55. P-values for t-tests are found in Figure 9—source data 1.