neversaydieChimpanzees in Uganda locked in eight-year 'civil war', say researchers
Here is the paper: https://www.science.org/doi/10.1126/science.adz4944 - it's interesting.
I noticed there was a respiratory epidemic that killed 25 chimps naturally quickly, one would imagine that would have quite a societal destabilizing impact?
I wonder if chimps are sophisticated enough to believe in omens? Perhaps they saw the sudden deaths are some sort of sign that the established structure was weak or immoral.
I could imagine if you where friends with someone and a bunch of their friends suddenly and mysteriously died, personally, I wouldn't kill that friend, but I might call the cops.