How Many Friends Does One Person Need?: Dunbars Number and Other Evolutionary Quirks:

How Many Friends Does One Person Need?: Dunbars Number and Other Evolutionary Quirks
by Robin I.M. Dunbar
Non-Fiction: Science, 312 pages

First, this book is about a decade old, so there are a couple things where our scientific knowledge has changed since it was written.  Second, I am going to be generous and guess that the part of the book that I had the most issue with was due to them using currently outdated science.  When I first opened the book, I actually skipped ahead to the last chapter to skim it, before wasting time on reading it.  As it was on evolution and religion, and as it was coming from an atheistic science point of view, I was concerned that it would end not as a science book, but as an anti-theist philosophy book.   But, it actually was a rather fair view on how religion could be evolutionarly useful to humanity.  No, the one problem that I found with the book is that they clearly think that 'Rain Man" was an accurate portrayal of all autistic people.  Which wouldn't be that big of an issue, except that it is used multiple times in a chapter about what makes one human and the abilities of the other primates.  This includes stating that great apes have higher thinking abilities then babies, the autistic, and others with severe mental disabilities.