Redican, W. K., Mitchell, G. 1973. The social behaviour of adult male-infant pairs of rhesus macaques in a laboratory environment. American Journal of Physical Anthropology 38, 523-526.

He groomed the infant very carefully for a little over five minutes. The infant clung to Mellow's ventrum, climbed on his back, shoulders, and head, and leaned over backwards while holding onto his ears. Immediately after the separation, in a display of intense self-directed aggression, Mellow bit himself so severely that several major blood vessels on his leg were cut and he would have literally killed himself if he had not received veterinary care.

Year
1973