Figure 2. Individual responses to a novel food after an opportunity for social learning.

The average time that bold and shy (A, B) and anxious and calm (C, D) baboons handled the novel food on their first interaction with it (pres. 1) and on their second interaction with it (pres. 2) either without being exposed to a demonstrator (A, C) or after being exposed to a demonstrator (B, D) (n = 45 trials). Plotted are the means and standard errors for the raw data; note that though the data are presented as categories (split at the mean of the trait for the population) they were analysed as continuous variables.