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  1. Are women the only females that have menstuation?

    ... (cats, dogs, horses, etc.) do not menstruate. see the below definitions from www.answers.com: 1. menstruation (mĕn'strū- ā 'shən) n. =The process or an instance of discharging the menses...

    11 Answers · Science & Mathematics · 26/11/2007

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