Imagine a bunch of hunte/gatherers, who just entered a new continent (like north-america)- having those loonies orbiting the group, reporting new ressources, scouting ahead- sounds well adapted.
Yeah it looks like wikipedia has a page on this controversy:
https://en.wikipedia.org/wiki/Group_selection
Richard Dawkins apparently doesn't believe in it, and neither does Steven Pinker.
But just based on casual observation I think group selection is real (yes I know that's not scientific). Humans are like ants in many ways... some of us are "programmed" to perform specific roles.
The book Sapiens repeats this over and over and I tend to agree. Religion, government, corporations, etc. are ways in which we cooperate with thousands or millions of others. We don't have to have the exact same genome, and it's not perfect cooperation, but there's something there.