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. 2012 May 9;7(5):e36802. doi: 10.1371/journal.pone.0036802

Figure 6. The level of grooming reciprocation was negatively correlated to the rank distance between females (rs = −0.64, p<0.05).

Figure 6

. In dyads consisting of distantly ranked females, the degree of reciprocation was lower than that in dyads consisting of closely ranked females.