Great Apes kiss and cuddle to keep the peace, says study

A study from Durham University suggests that chimpanzees and bonobos use physical contact like kissing and hugging to build trust and reduce stress before conflicts. This behavior is compared to a 'rallying cry' that fosters group cohesion.
Why it matters
Provides evolutionary insights into the origins of social bonding and conflict resolution in primates, including humans.
Image source, Jake Brooker / Chimfunshi Wildlife Orphanage Trust Image caption, Embrace between Little Jake and Little Joey, two juvenile male chimpanzees in a forested sanctuary
Touching, embracing and kissing before stressful events may be an ancient way of building trust, according to scientists studying the behaviour of our closest ape relatives.
Researchers at Durham University studied chimpanzees and bonobos using physical contact to reassure each other ahead of conflicts over food.
One of the most surprising findings was that chimpanzees, despite their reputation for aggression, engaged in close contact, including placing fingers in one another's mouths.
"Before stressful events, they come together, they reassure each other, they touch each other, they hug each other," said Prof Zanna Clay.
Figure caption, Watch: Bonobos and chimpanzees displaying reassuring physical touch behaviours such as embracing and kissing
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