Pin back your ears. The difference between a woman who is ovulating and one who isn't, can be detected by the pitch of the voice. Ah yes, those psychologists have been at it again. This latest addition to knowledge comes from researchers at the University of California, Los Angeles. After a careful study of women's voices it has been determined that they rise in pitch a day or two before ovulation.
Many animals exhibit signs of fertility but it has always been assumed that humans were...
