She said Palin and Clinton have only gender in common.

CNN: Will her gender sway women to Palin?

School gender separation is common in other parts of the Arab and Muslim world.

NPR: Women's Group Slams Gaza Law On Gender Segregation

In a landmark study titled Boys Will Be Boys: Gender, Overconfidence and Common Stock Investment professors Brad Barber and Terrance Odean of the University of California, Davis, documented that men traded 45 percent more than women and ended up having their net returns reduced by almost a full percentage point compared to women.

FORBES: What Men Can Learn from Women to Invest More Profitably