The comparison of behavioural fractions of three social groups: 24 social behaviour modules with significant differences are manually identified (mean s.d., two-way ANOVA followed by Tukey multiple comparisons test, n = 20, adjusted P values from left to right (group A versus group B, group A versus group C and group B versus group C) are >0.9999, <0.0001, <0.0001, 0.9990, <0.0001, <0.0001, >0.9999, <0.0001, <0.0001, 0.9939, 0.0002, <0.0001, >0.9999, <0.0001, <0.0001, 0.9919, 0.0016, 0.0010, 0.8210, 0.0055, 0.0331, 0.0001, 0.0029, 0.7179, 0.8213, 0.0438, 0.1703, 0.9882, <0.0001, <0.0001, 0.2691, 0.0323, 0.6000, 0.5677, 0.0952, 0.0057, 0.6034, 0.0101, 0.1239, 0.0733, 0.0145, 0.8183, 0.2698, 0.0184, 0.4735, 0.1217, 0.0011, 0.2511, 0.4016, 0.0397, 0.4864, 0.5691, 0.0001, 0.0054, 0.0005, <0.0001, <0.0001, 0.6728, 0.0297, 0.2076, 0.0175, 0.7233, 0.1220, 0.0445, 0.2145, 0.7555, 0.0222, 0.4986, 0.2810, 0.1373, 0.8823 and 0.0454).