Peri-Menstrual Sexual Behavior Among Rhesus Monkeys
- 8 December 1970
- journal article
- Published by Brill in Folia Primatologica
- Vol. 13 (4) , 286-297
- https://doi.org/10.1159/000155326
Abstract
During a behavioral study of free-ranging rhesus monkeys, non-pregnant females were observed to show sexual behavior both at mid-menstrual cycle and peri-menstrually. The basis of the dual estrous periods appears to be dual maxima in estrogen secretion. Peri-menstrual estrus may be an evolutionary vestige from a tupaiid-type sexual cycle. The occurrence of sexual behavior proximal to menstruation forces a redefinition of the term ‛es-trus.’Keywords
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