Answer: One idea is that, as humans evolved from small hunter-gatherer tribes into large agrarian cultures, our ancestors needed to encourage cooperation and tolerance among relative strangers. Religion then along with the belief in a moralizing God was a cultural adaptation to these challenges.
Explanation:
Humans may have developed religion as a way to promote cooperation in social groups, Dunbar said. He noted that primates tend to live in groups because doing so benefits them in certain ways. For instance, hunting in groups is more effective than hunting alone. But living in groups also has drawbacks.