We might not be that different from our closest ape relatives… Touching, embracing and kissing before stressful events may be an ancient way of building trust, scientists who studied chimpanzees and bonobos have found. Prof Zanna Clay described the behaviour as "a rallying cry" before a stressful event. "It's like a 'we' rather than a 'me'," she said. 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. Tap the link in BBCNews’s bio to read how far the use of touch to build trust and cooperation may date back. (📷 Durham University, Jake Brooker, Chimfunshi Wildlife Orphanage Trust, Zanna Clay, Lola ya Bonobo Sanctuary) #GreatApes #BBCNews