Crockett, C. M., Bowden, D. M., Bowers, C. L. et al. 1991. Social pairing of longtailed macaques with preferred, nonpreferred, and randomly assigned cagemates. American Journal of Primatology 24, 94-95 (Abstract).
Pair formation technique is described. All 15 [female-female] pairs were sufficiently compatible that none had to be separated.
Year
1991