Durham University Study Reveals Great Apes Use Kissing and Cuddling to Manage Stress and Foster Group Trust

A groundbreaking study published in the journal Proceedings of the Royal Society B: Biological Sciences has revealed that great apes, specifically chimpanzees and bonobos, engage in sophisticated physical rituals to maintain peace and group harmony. Researchers from Durham University found that these primates frequently utilize tactile behaviors such as kissing, embracing, and gentle touching to reassure one another and build mutual trust. These interactions are particularly prevalent before potentially stressful events, serving as a strategic mechanism to mitigate tension within their social groups.

The research compares these primate interactions to human social rituals, such as the huddles performed by football teams before a match. By engaging in these proactive displays of affection and solidarity, the apes are able to signal cooperation and reduce the likelihood of conflict during high-stakes situations. This study highlights that physical contact is not just a reaction to immediate stimuli but a deliberate tool for social management, providing a clear biological parallel to the way humans use non-verbal communication to navigate complex social environments.

From an evolutionary standpoint, the findings provide profound insights into the deep-seated history of social behavior. Scientists suggest that the use of social touch as a form of communication and trust-building may date back at least seven million years. This timeline indicates that the foundational elements of modern human sociality and the psychological need for physical reassurance have deep roots in our shared evolutionary lineage. By observing how our closest living relatives manage group dynamics, researchers are better able to understand the biological foundations of human empathy and social intelligence.

The implications of this study extend beyond primatology, offering a broader understanding of the psychological benefits of physical contact and social support. The research underscores the enduring role of touch in fostering well-being and stability within a community. As the scientific community continues to explore these behavioral links, this study serves as a critical reminder of the biological continuity between humans and other great apes, emphasizing that the drive for peace and social cohesion is a fundamental aspect of primate nature.