Age of menarche in pigtail monkeys (Macaca nemestrina): A cross-sectional survey of perineal tumescence |
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Authors: | N. Erwin J. Erwin |
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Affiliation: | Regional Primate Research Center Field Station, University of Washington Medical Lake, WA 99022 USA |
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Abstract: | A four-month survey of perineal tumescence in 131 young female pigtail monkeys () revealed that most females had begun to swell by the time they were 3 years old. Those that had not begun to swell by that time were generally of lower weight than their peers. Those that tumesced before they were 3 years old tended to be heavier than their peers, but were not necessarily heavier than older, nonswelling females. |
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