What is it about?
The study of how animals respond to death (also called thanatology) has shown that humans are not the only species affected by the death of group members. Especially non-human primates, such as chimpanzees, show behaviors like carrying the corpse for a long time, gathering around the deceased, and inspecting the body for signs of life. In this study, we show that chimpanzees do not only respond to the deceased individual itself, but also to the bereaved: the individual most closely association with the deceased. We describe a case of a female chimpanzee in a zoo who lost her infant (presumed stillborn). Normally this female received little social support, but after the loss, she received friendly behaviors from many group members. On the day of her stillbirth, some group members gave the mother kisses on her mouth and body, which are intense friendly and supportive behaviors. Additionally, in the month following the stillbirth, they spend more time nearby the mother and groomed her more often than in the period before the stillbirth. We ruled out several alternative explanations for this increase in positive behavior towards the mother, and conclude that it may likely have been a response to her loss. Chimpanzees are known to be empathetic towards victims of aggression by consoling them, and this case report shows that this empathy may also extend to chimpanzees consoling individuals who have recently experienced a loss.
Photo by satya deep on Unsplash
Why is it important?
Our findings show that chimpanzees may respond to the suffering of others also when this is not directly visible such as after the other was a victim of aggression. Furthermore, it highlights how the death of an individual is an event that affects not just that individual and those close to them, but their entire social group.
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This page is a summary of: Do chimpanzees (Pan troglodytes) console a bereaved mother?, Primates, September 2019, Springer Science + Business Media, DOI: 10.1007/s10329-019-00752-x.
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