Our Chimpanzee Ancestors

By April 26, 2026Commentary2 min read

I have read a number of books and articles on the origins of the human tendency toward constant violent conflict and war.  I am going to assume that most of you accept the obvious origin of humans as an evolved species from the primate tree.  So seeing what has become of our primate relatives who did not develop the level of intelligence and self-awareness that humans have can be interesting.  And it turns out that most primate species are tribal and have many of the same kinds of conflicts over territory and resources, including the ones closest to us, like chimpanzees.  The core study is in the journal Science, here. (Science Study) 

The Wall Street Journal has an article on a widely-studied band of chimpanzees which was living in relative peace but recently became riven with civil war.  According to the study and articles, this band of chimps got along just fine for 20 years or so, then in a period of a few years became splintered with one sub-group attacking and killing members of the other subgroup.  The group had been successful against other groups of apes and had expanded its territory prior to the internecine conflict.  The band consisted of around 200 members and it isn’t clear if size alone created the environment for the divisions or any conflict over resources.  It may have just been interpersonal as the “leaders” of the group had a good relationship, but as those chimps died they were not replaced by members with equally benign attitudes.   (WSJ Article)

The description of the behavior of the sub-groups sounds just like human conflicts.  Now, as far as we know, the difference between humans and chimpanzees is that supposedly we are smarter and capable of self-awareness and reflection, but that difference has done nothing to help us learn to stop the incredible waste of human and material resources in violent conflicts.  Our increasingly sophisticated technology does nothing to make me believe we are not headed for a terrible end, in fact it looks likely to facilitate it.  We have to figure out a way to resolve conflicts over territory, resources and ideology or we are truly doomed.

Kevin Roche

Author Kevin Roche

The Healthy Skeptic is a website about the health care system, and is written by Kevin Roche, who has many years of experience working in the health industry through Roche Consulting, LLC. Mr. Roche is available to assist health care companies through consulting arrangements and may be reached at khroche@healthy-skeptic.com.

More posts by Kevin Roche

Join the discussion 3 Comments

  • David Fennell says:

    As the flash point of the chimp civil war is studied further, someone placing a Polymarket bet on a wet market origin is going to make a lot of money! That or a mandatory monkey pox vaccine imposed by legacy leaders!

  • broonoff says:

    Right. I think the devilish influence of the monkey’s nature should not be underestimated.

  • David K says:

    I have a different theory, and I think it’s backed up by history. The Bible describes a Creator, who brought order out of chaos. One of the astronauts of the recent Artemis 2 mission, pointed out that they were able to survive because they were inside a protective vessel, and he saw Earth with the same protections, (order), from inhospitable space, encouraging humanity in that common denominator. My theory is, the further we stray from the Author of order, the more we give way to chaos. You wrote recently about the hippies, who based their beliefs on feelings. They were against the war, which is good, but lacked a foundation that would’ve kept them from spitting on returning soldiers and calling them “baby killers”; their foundation was built on sand. The Jesus movement was born after that and a renewal spread through the youth of that day. Historically, it was Christian philosophy that brought the reality of “all men are created equal” to Western countries and ended slavery as a legal practice. My own experience is, as a young person, I was filled with hurt and anger – chaos, and I in turn hurt the people around me. It wasn’t high learning that changed my life but an invitation to be in relationship with the Creator. I don’t know what the explanation is for how we came from chimpanzees, but there are still chimpanzees. I see nature as beautiful but also merciless. Dennis Prager has asked the question, are there any mass murderers, or other evil-doers, who were regular Church-goers? The Creator is against horrific treatment of others – even slaves, and I believe a return to Him is what brings goodness to society.

Leave a Reply to David FennellCancel reply