Bonobo Behavior Reveals Ancient Origins of the 'Common Enemy Effect'

Insights into Group Cohesion & Conflict Resolution in Early Human Evolution

In response to external threats, species ranging from humans to chimpanzees and other animals often close ranks, reinforcing bonds within their groups. This phenomenon, known as the "common enemy effect," has long been recognized as a strategy for survival in the face of group-based competition. A recent study¹ by an international team led by Kyoto Unive…