This file contains six tables. Each table is a squared matrix reporting the total number of submissive gestures exchanged among dogs belonging to the same pack. So, each table corresponds to a different dog pack. Performers of submissive gestures are reported on the vertical axis on the left side of each table, in which each individual dog is identified using a 2-3 letters code. Recipients of submissive gestures are reported on the upper horizontal axis of each table, and again each individual dog is identified using a 2-3 letter code. Note that the data reported for the Curva pack are not statistically independent from those reported for the Fused pack, since the latter originated from the fusion of the Curva pack with another one and the data collected before and after the fusion event were combined (see Bonanni et al. 2017, Behav Ecol, for additional explanations). In the original paper, the data reported in these tables were used to calculate the statistical parameters reported in Table 3, i.e. hierarchy linearity, directional consistency of submissive behaviour, hierarchy steepness, as well as percentage of unknown, 1-way, 2-ways, and tied dyadic relationships. Moreover, these data were also used to arrange pack members in the rank order that was most consistent with a linear hierachy.