Withholding information in semifree-ranging Tonkean macaques (Macaca tonkeana)

The ability of Tonkean macaques (Macaca tonkeana) to deceive partners about the location of hidden food was investigated in 4 males belonging to a group raised in a 2-acre park. Before releasing subjects in the search task, the experimenter prompted 1 of the subjects to observe where the bait was hidden. The authors found that […]