Only a small percent of engineers are women. Feminists claim that misogynist forces keep females out of the profession. Once again, the data show that biology is implicated. A new study by John Manning and colleagues shows that levels of testosterone, both during prenatal development as well as adulthood, predict having a job in a male-dominated field. High testosterone individuals, male or female, are more likely to work as engineers, IT dudes, or skilled laborers, while low T people are more likely to work in education or as homemakers. At least part of workplace sex segregation is due to gender differences in this very important hormone.
Note to feminists: get over it.