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313 of 325 people found the following review helpful:
4.0 out of 5 stars
Halfway best, September 4, 2003
Since I teach evolutionary psychology in college, I try to keep up with "popular" expositions of human evolution--both because my (better) students will have read them and because some of them make for good teaching tools. The first ten chapters of this book rank, in my opinion, as probably the best single account of what we really do and do not know about human evolution.In these first ten chapters, Diamond gives us dispassionate surveys of dominant theories and available evidence. Here, it's not unusual for him to say something like, Here are the six dominant theories, here is the evidence that shows why four of them don't deserve serious consideation anymore in spite of their emotional or political appeal, and here are the relative scientific merits of the remainder. In an arena beset by vicious ad hominem attacks and passionate ideological presentations of unproven theories, Diamond--in these first ten chapters--offers the student more concerned with truth than ideology a lovely account. Among the important points he makes in these first ten chapters: Our genetic propensities toward cooperation, care for no-longer-procreative elders, and (in the case of women) outliving reproductive capacity set the stage for the evolution of the human brain. Genes may be "selfish," but our genes' inclining us toward non-egoistic ways of life lie at the foundation of being human at all. This is a crucial point, consistent with the ethical views and habits of all civilizations other than those that foster "social Darwinism." That our humanity depends on the falsity of "social Darwinism" cannot be emphasized too greatly. Science supports the kind of other-oriented, community concern that all ethics, through all of human history--unlike allegedly "enlightened" egoism--codifies. (See also the wonderful anthology, "The Evolutionary Origins of Morality," LeonardD. Katz, editor.) Beginning in chapter eleven, the book becomes progressively more speculative, more of a presentation of Diamond's own theories, some about things outside his area of professional expertise--e.g., the effects of continental differences in flora, fauna, and climate on differential developments of civilizations. Here, we lose the critical comparative attitude of the first ten chapters. If you think carefully, you finish each of these latter chapters with a lot of, "Yes, but . . . " questions. Thus, in the first ten chapters, you rightly come away with confidence that you've acquired a fair understanding of the state-of-the-art in evolutionary studies. In the latter chapters, that simply isn't so. I agree with most of the political and ideological principles underlying Diamnod's speculations, and I appreciate that--unlike many leading "lights" in studies of human evolution--he never resorts to name calling and acting as if those who differ are nefarious fools. But I wish he'd either stopped writing after ten chapters, or made the latter chapters more like the first ten. Each of these latter chapters is intelligent and interesting, and each deserves further condieration; but Diamnond's shift in standards of assessment and style of presentation makes the second half of the book far less authoritative, and therefore makes the book as a whole something one can less enthusiastically recommend--or use in teaching.
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