Nature Via Nurture: Genes, Experience, and What Makes Us Human (Hardcover)

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Editorial Reviews

Amazon.com Review

In the follow-up to his bestseller, Genome, Matt Ridley takes on a centuries-old question: is it nature or nurture that makes us who we are? Ridley asserts that the question itself is a "false dichotomy." Using copious examples from human and animal behavior, he presents the notion that our environment affects the way our genes express themselves.

Ridley writes that the switches controlling our 30,000 or so genes not only form the structures of our brains but do so in such a way as to cue off the outside environment in a tidy feedback loop of body and behavior. In fact, it seems clear that we have genetic "thermostats" that are turned up and down by environmental factors. He challenges both scientific and folk concepts, from assumptions of what's malleable in a person to sociobiological theories based solely on the "selfish gene."

Ridley's proof is in the pudding for such touchy subjects as monogamy, aggression, and parenting, which we now understand have some genetic controls. Nevertheless, "the more we understand both our genes and our instincts, the less inevitable they seem." A consummate popularizer of science, Ridley once again provides a perfect mix of history, genetics, and sociology for readers hungry to understand the implications of the human genome sequence. --Therese Littleton

From Publishers Weekly

"Nature versus nurture" sums up in a nutshell one of the most contentious debates in science: Are people's qualities determined by their genes (nature) or by their environment (nurture)? The debate has only grown louder since the human genome has been found to comprise only 30,000 genes. Some scientists claim that we don't have enough genes to account for all the existing human variations. Ridley, author of the bestseller Genome, says that not only are nature and nurture not mutually exclusive, but that "genes are designed to take their cue from nurture." Genes are not unchanging little bits of DNA: their expression varies throughout a person's life, often in response to environmental stimuli. Babies are born with genes hard-wired for sight, but if they are also born with cataracts, the genes turn themselves off and the child will never acquire the ability to see properly. On the other hand, stuttering used to be ascribed solely to environmental factors. Then stuttering was found to be clearly linked to the Y chromosome, and evidence for genetic miswiring of areas in the brain that manage language was uncovered. But environment still plays a role: not everyone with the genetic disposition will grow up to be a stutterer. Ridley's survey of what is known about nature-nurture interactions is encyclopedic and conveyed with insight and style. This is not an easy read, but fans of his earlier book and readers looking for a challenging read will find this an engrossing study of what makes us who we are.
Copyright 2003 Reed Business Information, Inc.

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Product Details

• Hardcover: 336 pages
• Publisher: HarperCollins; 1 edition (April 29, 2003)
• Language: English
• ISBN-10: 0060006781
• ISBN-13: 978-0965804851
• Product Dimensions: 8.2 x 5.5 x 0.9 inches
• Shipping Weight: 1 pounds (View shipping rates and policies)
• Average Customer Review: 4.1 out of 5 stars  See all reviews (43 customer reviews)
• Amazon.com Sales Rank: #243,970 in Books (See Bestsellers in Books)

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Most Helpful Customer Reviews

158 of 163 people found the following review helpful:

5.0 out of 5 stars Great Book - But DON'T BUY IT!!!! (read this review first), July 9, 2004

By	"doug1951" (Chino Hills, CA USA) - See all my reviews

This review is from: The Agile Gene: How Nature Turns on Nurture (Paperback)

I have really enjoyed each and every Matt Ridley book and "The Agile Gene" is no exception - but for the fact that it is an identical 'word-for-word' copy of his book titled "Nature Via Nurture". I'm not sure why a publisher would release the same book under a different title (there is one very small notice on the left front of the cover stating "Previously published as Nature Via Nurture"), but I'm more upset that it's not a new Matt Ridley book than by being out the money for the price of the book and the special two day delivery.

So...great book, just don't shell out any money if you already read "Nature Via Nurture".

55 of 61 people found the following review helpful:

5.0 out of 5 stars Genes are all: but they aren't what we thought they were, September 3, 2003

By	Todd I. Stark "Cellular Wetware plus Books" (Philadelphia, Pa USA) - See all my reviews (REAL NAME)

With Nature_Via_Nurture, Matt Ridley affirms his place as one of the most valued and important science writers of our time. Well known for his award-winning _Genome_, Ridley is also the author of several other popularizations of biological science that are even better. In _The_Origins of Virtue_, Ridley demonstrated brilliantly how "economic" factors like division of labor and trade are actually keys to understanding human social behavior, in spite of the fact that we are also the products of a specific biological legacy. This is a deep insight that even many evolutionary biologists sometimes seem to stumble over.

As Ridley points out, the ideological question of whether human behavior is more the product of heredity or environment has distinguished not just scientists, but fascists and communists, just as surely as any of their political theories. During the well-known sociobiology debates, technical issues were rarely discussed much less resolved. Rather politics and the question of hidden agendas always raised its head.

While virtually all scientists and indeed anyone with a modicum of learning, observational skills, and common sense, have long known that heredity and environment were interacting factors in human nature, that answer truly satsifies almost no one. We still argue over the many implications of being either victims of our genes, victims of our environment, or somehow free of both. We still seek the answer to the technical question of *how* exactly biology and environment interact to produce living things, especially ourselves. And more abstractly, we still want to know what defines us as individuals, and what determines our fate. A lot seems to hinge on the answer, which is why asking the "question of nature and nurture" never fails to bring out strong opinions.

In the most common caricature, the hereditarians insist that we have a are products of our biological history and have a specific fixed nature rather than being blank slates formed by our environment. The environmentalists insist that what nature wires up is a flexible general purpose organism capable of above all learning and being shaped by their environment. In early political theory, the difference had serious implications because for example things like "social contract theory" revolved around what human beings were supposed to be like in a "state of nature" without society. Were we gentle, peaceful, noble savages; or brutish, win-at-all-costs warmongers competing over territory and mates?

In _Nature_Via_Nurture_, Ridley freely exhibits both his consummate writing skills and his ability to make important scientific points clear without oversimplifying them. His message is crystal clear. Genes are everything. Nothing about us, including our nurture, can be fully understood without appreciating the role that genes play both in constructing us and in providing ongoing biological functions.

But wait ... there's a catch. A big one. The hereditarians are right. Our biological legacy is all important. Yet the hereditarians typically understand or at least emphasize only part of the importance of genes. The environmentalists made the serious mistake of fearing the role of genes because they, along with the hereditarians, assumed that genes were little dictators that caused things to happen. "Genetic determinism" is supposedly something no one is silly enough to believe in, yet when the discussion gets heated, it seems to be the default position that nearly everyone takes. In arguing anachronistically about "free will" vs. "determinism," we instinctively place genes into the role of neccessity, regardless of which side we are on. But it turns out that genes didn't cooperate with that characterization as we studied their role more closely.

This was also part of the underlying framework of biological science. It was considered a classic mistake, so-called "Lamarckism," to have fallen for the claim that behavior and experience could possibly influence our genes. The influence was one-way, an assumption that was commonly assumed to apply in evolution, in development, and in behavior.

But there was an "underground" among biological theorists, long scattered and individually easily dismissed critiques which eventually have coalesced into a single powerful new interactionist framework. Genes are indeed everything, but their influence goes both ways. And this happens at all levels. Not only are the chemical effects of genes influenced by the environment, but development is chanelled in various ways by experience, and the evidence is growing that behavior even has an influence on what happens in evolution. Organisms actively modify, select, and construct their own niches, according to the preferences set largely by their genes, and this is an important factor in reproductive fitness, the selection criteria of biological fate.

And so the environmentalists are right also. Experience and behavior do matter in shaping us. Not just through learning and development but even through evolution. And they matter not in spite of our genes, but because of them. Still, this clearly doesn't make us blank slates. Genes respond but they are not infinitely flexible responders. The do set limits in some sense and they do establish reliable trajectories. Yet they are not blueprints for our final form, nor do they compel our behavior. Genes help build dynamic mechanisms capable of responding to the environment in particular ways to make it possible for living things to carve out their own way of life. Here the hereditarians are right as well, having more "instincts" can make us more flexible rather than less flexible. We needn't be a blank slate to be capable of flexible behavior or "free will," we need the capacity to choose and some basis for making and acting on choices.

Just as he did for social behavior in _Origins of Virtue_, Matt Ridley sets a sane, clear, modern scientific tone for the next round of the neverending "nature and nurture" debate, and provides a bridge from the anachronistic abstract question of free will and determinism to the modern science that has the potential to address real answers to real questions.

23 of 23 people found the following review helpful:

5.0 out of 5 stars I almost skipped this one but..., July 11, 2003

By	Jeremy Colton "Biology does not have all the ... (Granite City, IL United States) - See all my reviews (REAL NAME)

Amazon Verified Purchase

This review is from: Nature Via Nurture: Genes, Experience, and What Makes Us Human (Audio Cassette)

"Nature via Nurture"; the title sounds like a dead horse that doesn't need to be beaten any more. I decided to pick this one up because I love Ridley's work, and because it is read by the author. What a treat that is! With the author reading the book, you know that the nuances are correct, and that the abridgement isn't harming the message.

The discussions in this book are dramatically and importantly different from other discussions of "Nature/Nurture", and I can hardly recommend it strongly enough. What is different is the degree of specificity that Ridley brings to the conversation. He demonstrates from a dozen different points of view HOW causality flows both ways, from the genes to the environment and back. He also pokes holes in logical fallacies one hears all the time - for example, the assertion that a feature is not genetic because the specific genes have not (and in some cases may not ever) been identified. A well-constructed twin study positively identifies heritability of traits; tracking that heritability back to a spot on a chromosome is useful and interesting but not necessary.

There is also basic science here that the lay reader might not otherwise learn for years. For instance, until very recently it was thought that there was a one to one correlation between genes and their proteins. It was also unknown what, if any, purpose breaking genes apart into exons on the chromosome served. Now we have discovered that many - ninety five on one mouse gene - different versions of one exon can exist on the chromosome, allowing one gene to make many different versions of its protein. Different versions mediated by... environment, of course.

Much of the information here is counter-intuitive. For instance, the more egalitarian a society is, the more the heritabilaty of traits becomes manifest. Potentially confusing, certainly mind-bending, and who better than Ridley to explain it?

If you are interested in biology, read this book.