Designing captive primate environments sensitive to age and gender related activity profiles for rhesus monkeys (Macaca mulatta) (1990)

O'Neill, P. L., Price, C., Suomi, S. J.

Abstract

An analysis of the time budget (agonistic behavior is excluded) of rhesus macaque groups kept in free-ranging and confined [corncrib] condition. Adult animals spent about the same amount of time engaged in social grooming in both conditions (17%) but spent more of the time sleeping (6.6% vs 2.9%) and foraging (5.9% vs 1.3%) in the free-ranging condition than in the confined condition.