Species don’t learn to coexist, natural selection takes care of that.

Again, it’s not peace, because peace is a human concept. Therefore peace couldn’t exist without humans. What you are talking about is existence, a fully balanced eco system.

And the lion will still eat the gazelle and male butterflys will still force themselves on the females, so many of them die during sex. Doesn’t make it war. A clownfish coexisting with an anemone is not peace, it’s evolution.

Peace is a decision. But it only works if everyone decides on the same thing