Is There a Causal Approach to Multi Level Selection?

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i'm not convinced that humans are human groups are levels of selection in the traditional sense. For group level adaptations to arise, we normally, what normally has to happen is that within group, conflict has to be almost entirely suppressed. And i think tat this, the whole field of cultural group selection is really interesting and is throwing up loads of really interesting hypotheses. But i am probably more of a tradition a, a dawkins advoca in some ways, in that sense.

Cooperation is the means by which life arose in the first place. It’s how we progressed through scale and complexity, from free-floating strands of genetic material, to nation states. But given what we know about the mechanisms of evolution, cooperation is also something of a puzzle. How does cooperation begin? A biologist by training, Nichola Raihani looks at where and how collaborative behavior emerges throughout the animal kingdom, and what problems it solves. She reveals that the species that exhibit cooperative behavior — teaching, helping, grooming, and self-sacrifice — most similar to our own tend not to be other apes; they are birds, insects, and fish, occupying far more distant branches of the evolutionary tree. By understanding the problems they face, and how they cooperate to solve them, we can glimpse how human cooperation first evolved. And we can also understand what it is about the way we cooperate that has made humans so distinctive and so successful.