Three STEM fields that are disproportionately female can teach other industries about how to boost the ranks to include more women. In the workforce, where women make up 47% of employees, they only represent a quarter of the jobs in mathematical sciences and 13% of engineers. There are a few bright spots. Statistics, botany, and healthcare are three areas where women dominate. We asked leaders in these fields to tell us why women lead the pack, and what they can teach others about achieving a better balance.