Watching conspecifics being trained helps rhesus macaques (Macaca mulatta) learn faster (2008)

Mueller, K., Moore, K., Maier, A. et al.

Abstract

These results suggest that observing others being trained may help to reduce overall training time in macaques. Adult rhesus macaques required significantly less time (about 200 minutes) to cooperate during injection when they had watched others being trained, than individuals who were trained without prior visual exposure to others (about 270 minutes).