Barsotti D A, Abrahamson L J, Marlar R J, Allen J R
J Reprod Fertil. 1980 May;59(1):15-20. doi: 10.1530/jrf.0.0590015.
The reproductive adaptability of newly acquired female feral rhesus monkeys was evaluated by comparison of their menstrual records and progesterone levels with those of females in captivity for 3 1/2 years. Housing of the animals under conditions that simulated conditions of the breeding season in the wild resulted in a rapid adjustment with minimal periods of amenorrhoea or anovulation. Both groups of monkeys were similar with respect to menstruation and menstrual cycle length and progesterone levels.
