The bulk of this book describes the process by which Homo sapiens' ancestors became eusocial and how that led to multilevel selection. When a species becomes eusocial, group selection becomes an important element in the species' evolution.
For criticism of the concept of group evolution, read blog entry 1 and blog entry 2 from Jerry Coyne, the author of Why Evolution is True, a book I have in my possession and intend to read and review. I heard Dr. Coyne give a lecture in a suburb of Augusta, GA on February 4, 2013.
Being an expert in insects, the typical example of eusociality, E.O. Wilson shifts back and forth between describing the development of eusociality in ants and eusociality in anthropods.
The important thing for me, and for most readers of this blog, is Professor Wilson's final chapters where he presents conclusions on how this understanding of humanity should impact our religious and moral beliefs and ethical practices.
