Michael Wilson

There are several different ways of viewing it.

And one is thinking, well, they're our closest living relatives.

So if they do something and we do something, then maybe our last common ancestor did it and we're doing it because of our shared evolutionary history.

I think it's clear from this study and from other studies of chimps and other animals that you can get these kinds of conflict without a lot of the things that we think about being the sources of conflict in humans.

Lions don't have religion and political parties or ideology, and neither do wolves or ants, for that matter.