Menstrual Cycle Influences Grooming Behavior and Sexual Activity in the Rhesus Monkey

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Science  03 May 1963:
Vol. 140, Issue 3566, pp. 500-501
DOI: 10.1126/science.140.3566.500


The time spent by the female rhesus monkey in grooming the male fluctuates rhythmically and reaches a minimum at mid-cycle. At this time the male's grooming activity reaches a maximum. The rhythmic changes in male mounting behavior, together with the males' and females' grooming cycles, are abolished by ovariectomy and have a hormonal basis.