Wait Untill You See the Whites of Their Eyes!

"Wait Until You See the Whites of Their Eyes!"

...is the iconic battle cry of the Commander under siege as the attackers come in mass upon the fort, circle of wagons or up the hill towards his men. Strangely, the large whites of the eyes in humans, where designed to help us cooperate.
Recent research at Max Planck Institute for Evolutionary Anthropology discovered that unlike chimps and apes who look at head movement, children pay more attention to eye movement. Why?

Tune in soon for the answer