"Not too many people these days argue against the idea that having more women in positions of leadership and authority would be a good thing for most organizations. But turn to the question of why more women leaders is a good goal, or why it's such an elusive one, and you're spoiling for a fight," writes professor Rebecca Jordan-Young in the Harvard Business Review.

In Science, Jordan-Young offers her perspective on a study of chimps' stick-cradling tendencies: "...she doesn't think anyone should draw sweeping interpretations about innate differences between the sexes from this study. She says that the researchers cannot rule out that females carry sticks because they are mimicking the behavior of other adolescent females. It could also just be a cultural fad."