In other words, the differences are dimorphic—different but overlapping—rather than binary. (Watch for that gap instinct I mentioned in chapter 2.) The typical male has a greater willingness to take risks, for example, than the typical female (especially in adolescence). But some women are more risk-taking than some men. Most studies find the biggest differences are at the tails of these distributions, rather than for the majority of people. A large majority of the most aggressive people are male, but the differences in aggressiveness in the general population are much smaller.
