Figure S5 from Pay-off-biased social learning underlies the diffusion of novel extractive foraging traditions in a wild primate

Plot of incidences of focused, sustained observation of another capuchin (in each row) observing a panama foraging demonstrator. Older individuals are at the top of the graph. The x-axis is the event time of each fruit processed by a single individual. Each star indicated an observation event by the individual labelled on the y-axis.