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Science. 1980 Jun 27;208(4451):1477-9.

Behavioral and physiological evidence of sexual climax in the female stump-tailed macaque (Macaca arctoides).


Intense tonic/clonic uterine contractions and sudden increases in heart rate coincided with the behavioral homolog of a male ejaculatory response (minus seminal emission) in a normal female stump-tailed macaque engaged in homosexual mounting episodes. The behavioral patterns were also observed in four of ten females during 5 to 40 percent of heterosexual copulations. These observations demonstrate the existence of an orgasmic response in a nonhuman primate.

[Indexed for MEDLINE]

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