We're monkeys with jobs and computers. https://en.wikipedia.org/wiki/Gombe_Chimpanzee_War
"This “us” vs “them” outlook is also mirrored in human behavior. While the Gombe Chimpanzee War isn’t exactly identical to human war, it is strikingly similar in brutality and allegiance to a tribe." https://www.discovermagazine.com/planet-earth/a-brief-histor...
"Animal groups do compete over resources, sometimes in an organized way, but “war” implies something more formal, Dan Dembiec, supervisor of mammals at the Jacksonville Zoo and Gardens" https://www.nationalgeographic.com/animals/article/160130-an...
Both monkeys and humans require oxygen to breathe. That is, as you requested, one example of a constraint which applies to both. Perhaps you'd care to move the goalposts a bit?
You’re not paying me to do so. Instead you would be looking to attack my examples.
Instead go and google how monkey troupes operate and look at the analogies in human society.
I did it, so surely you can too!
Normally, people want an answer so they can just attack it. So why bother.
I'm sorry if it came across as me wanting your money.