Our eyes say it!

Our eyes say it!

Compared to other primates, humans have huge ‘whites of the eyes’, or sclera. This means that humans can easily read each other’s gaze. In experiments, great ape infants usually follow a gaze only when the experimenter also turns his head. But human infants follow the gaze when the experimenter moves only his eyes. The whites of our eyes may help a lot in communicating with one another.