With all the new smileys, it's time to bring back the smiley game! The rules are simple. Each post must contain at least one smiley and no more than one sentence. - - - - - Damn it--Maybe we need elbows to drink from each other's cups!
Menstruation is the shedding of the uterine lining (endometrium), which occurs on a regular basis in reproductive age females of certain mammal species, although overt menstruation (where there is bleeding from the vagina) is found primarily in humans. -<cite style="font-style: normal;">Strassmann BI (1996). "The evolution of endometrial cycles and menstruation". Q Rev Biol 71 (2): 181–220</cite>
