Fig. 4: Effect of development on the number and the characteristics of role models peered at (age and social tolerance).

A Effect of age on the number of non-mother role models peered at (model 4a), predicted for 60 h of observation. Each dot represents the number of role models peered at per subject. B) Effect of the interaction between focal’s age and receiver’s age on the probability of peering at a specific role model (model 4b). Infants include all role models less than 4 years, juveniles include role models between 5 and 12 years, adults include all role models more than 12 years. The regression lines are based on the mean age for each age class, respectively 1.6 years, 7.3 years, and 26 years. C) Effect of the percentage of time spent in less than 1 m proximity, as a proxy of social tolerance, on the probability to peer at a specific role model (model 4b). The regression lines from the Bayesian Regression model show a 95% credible interval. The dots in A represent the number of observed role models per individual per observation time. The dots in B, C represent the frequency of peering events directed at a specific individual per association time within a dyad; a jitter function was used to reduce overplotting.