Fig. 2: Does predictability of reciprocity influence participation?
From: Group-level cooperation in chimpanzees is shaped by strong social ties
The effect of the presence of a adult maternal kin or b social bond partner on the likelihood to participate in intergroup encounters in males (orange, 36 individuals) and females (blue, 75 individuals). The black horizontal lines represent medians, the boxes represent quartiles, the vertical lines represent the 5th and 95th precentiles, and the white horizontal line represent the fitted model. Source data are provided as a Source Data file.
