Mitchell, G., Gomber, J. 1976. Moving laboratory rhesus monkeys (Macaca mulatta) to unfamiliar home cages. Primates 17, 543-547.

The results of this study should serve as a warning to those who wish to observe behavior or take physiological measurements on monkeys. Removing an animal from its home cage prior to monitoring anything biological will probably affect the event being monitored. Behavioral and almost certainly physiological distress occur following removal from the home cage.