Instead of being able to tune the dial to the best trait, somatic and behavioral adaptation gives evolution quicker control over what the dials are and how far and in what direction they turn.

• 肉体和行为的适应性给予进化更灵活的控制能力，使其确定进化的罗盘是什么，它能使进化达到什么程度，又会将进化引向何方，而不是直接将罗盘调至最好的特性。