chapter
14 Pages

Hearing

This essay focuses on the hearing abilities of animals (what they hear) and the selective pres­ sures involved in the evolution of hearing (why they hear as they do). The data consist of behav­ iorally determined measures of hearing in ver­ tebrates and insects-the two groups of animals in which hearing is most highly developed. These are supplemented, where necessary, with electrophysiological measures of hearing.