Ovulating lap dancers make the best tips. That finding in a study caught the eye of UCLA Communications and Psychology professor Martie Haselton. Researchers in New Mexico asked a group of professional lap dancers to record two things: the amount of money they received in nightly tips and their menstrual cycles. The result? The dancers who were ovulating made more money than the women who were not. Martie Haselton wondered, why are ovulating women more attractive to men? And (how) can men tell?
Haselton's paper, "Can Men Detect Ovulation?" appears in the journal, Current Directions in Psychological Science.