Dian Fossey – Gorillas in the Mist 

“Coco began climbing slowly, stopping occasionally to determine their whereabouts before again meandering in the general direction of the patient males. Once within sight of Rafiki, the elderly female moved directly to him, exchanged a greeting series of soft belch vocalizations until reaching his side. They looked directly into each other’s face and embraced. She placed her arm over his back and he did likewise over hers. Both walked uphill in this fashion, murmuring together like contented conspirators. “