Apes do it. Kill for sport, band together to overthrow the dominant male etc.Until and unless there is other life found in the cosmos, the issue of good and evil seem to be manifest only in mankind. The rest of what happens in the universe simply is, it is not either good or evil.
A dingo is not evil for attacking its prey, nor is the the universe inherently evil because it exists.
It seems that only man can develop a spark of evil that leads to genocides, murders, subterfuge and more.
So do you think that there is a universal battle for man to make him one or the other? Or is it purely a environmental circumstance that leads some to this path?