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Science 4 September 1970:
Vol. 169. no. 3949, pp. 995 - 997
DOI: 10.1126/science.169.3949.995
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Articles

Intromission Pattern and Species Vaginal Code in Relation to Induction of Pseudopregnancy

Milton Diamond 1

1 Department of Anatomy, University of Hawaii, Honolulu 96822

Mechanical stimulation was used to mimic normal vaginal stimuli during copulation in the mouse; the number and rate of intromissions were crucial influences on reproductive success. The best combinations for the mechanical induction of pseudopregnancy were comparable to those male behaviors normally seen during mating. The behavior of the male coincides with a species-related vaginal code, increasing chances for reproductive success between cospecifics.


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Science. ISSN 0036-8075 (print), 1095-9203 (online)