Human Natures: Genes, Cultures, and the Human Prospect

In this wide-ranging survey of what it is that has made and that continues to make us human, Ehrlich touches on a number of themes--among them, his recurrent observation that science has taught us little about how genes influence human behavior. (Instead, he notes wryly, "science tells us that we are creatures of accident clinging to a ball of mud hurtling aimlessly through space. This is not a notion to warm hearts or rouse multitudes.") He urges that scientists take a larger, interdisciplinary view that looks beyond mere genetics to the larger forces that shape our lives, a view for which Human Natures makes a handy, and highly accessible, primer. --Gregory McNamee

Product Description
Why do we behave the way we do? Biologist Paul Ehrlich suggests that although people share a common genetic code, these genes "do not shout commands at us . . . at the very most, they whisper suggestions." He argues that human nature is not so much the result of genetic coding; rather, it is heavily influenced by cultural conditioning and environmental factors. With personal anecdotes, a well-written narrative, and clear examples, Human Natures is a major work of synthesis and scholarship as well as a valuable primer on genetics and evolution that makes complex scientific concepts accessible to lay readers.

"I doubt whether anyone will write as good a book of this sort on [human evolution] for another two or three decades." (Science)

"Ehrlich's book is so well researched and so elegantly presented that it stands as one of the best introductions to human evolution in recent memory." (Publishers Weekly, starred review)

"The Population Bomb" was a polemic that dictated a series of prescriptions for society, without which we were racing headlong to all sorts of disasters, notable shrtages of all strategic resources, massive starvation involving millions of people, food riots that destroyed governments and the downfall of western society as we knew it. This was prophisized to happen in the 1970s, and as most of us recall, none of it happened. He went on to predict that *billions* would die of starvation in the 1980s. Erlich also made a famous bet with economist Julian Simon,in which Simon challanged Erlich to pick 5 commodities that he felt would go up in price because of shortages. Erlich took the bet, and all five fell drastically in price.

In fact, nothing that Erlich prophasized ever happened. Erlich's predictions had little to do with science and much do do with ad-hoc justifications for his political prescriptions. Now Erlich has jumped onto the nature/nurture bandwagon, which has generated a lot of renewed interest in recent years owing to some major breakthroughs in the understanding of, and potential control over, the genetic makeup of humans. And once again, Erlich sees a lot of reasons we should follow his particular social agenda.

There's nothing particularly new or original in the discussion of nature and nurture in this book, which isn't surprising as Erlich has never done any research in this area. Most of the book is a fairly elementary rehash of the last twenty years of genetic research. Unfortunately it's not a terribly good one. His understanding of issues like human language is elementary at best. Even as science continues to discover just how much of our nature and our biology is, in fact, genetically determined, Erlich's position is that the contribution of genes to behavior is all but trivial, and that leads into the real intent of this book, which is to say his prescription for how society should be run. And not surprisingly, it's the same prescription he was making in the 1960s.

Erlich's problem is that he wants to be a social philosopher. He longs to dictate his notion of an ideal society- but he doesn't have any good social arguments. Instead he gives us specious arguments rooted in questionable scientific interpretations. The result is a poor introduction to either the nature-nurture debate or social philosophy.


Excellent reading for both the scientist and lay person   June 15, 2002
 2 out of 5 found this review helpful

Ehrlich has added to a number of good inter-disciplinary books that have been published in the last few years that all bring together the social and hard sciences. This is a well written and brilliantly engaging work. Few readers will fail to come away after reading this without some sort of intellectual reward.

Culture as a model of human evolution is emphasised, not to overtake genetics, but to add another dimension. The implications of this effect many fields, including biology, genetics, psychology, history and anthropology. Ehrlichs intelligent and clear writing, persuasive analysis and excellent footnotes make reading "Human Natures" a worthwhile effort. A joy to read.