Most Helpful Customer Reviews
149 of 151 people found the following review helpful:
5.0 out of 5 stars
We've got history in our genes, December 23, 2006
What a marvellous little book! I was taken by surprise so many times during my reading, whenever I thought I knew what the author is about at the beginning of many of his stories. In a way, this is like a crime fiction book written by a clever writer that catches you off guard and it reveals the killer only at the last page. The writing style is deceivingly simple; Spencer gets over the scientific details of genetics in a few paragraphs where he tells you in plain English everything you need to know to understand this book. The book then flows smoothly and he managed to make it so easy for you to follow the main ideas and try to decipher what is probably the greatest puzzle of all: the origins of human race. You will have a few surprises.
You might have seen the National Geographic documentary "The Journey of Man". Its author is none other than same Spence Wells. He is only 37 years old, and very, very bright. I have to emphasize again the writing style: very simple, yet it explains clearly complex concepts. He talks science, yet he is humorous and light. He uses sometimes numbers and probabilities, but the book is in general built around stories of five people chosen to represent the main haplogroups (families or a clans of people that share the same genetic properties transmitted over many generations) in the history of mankind. Spencer Wells is currently a National Geographic Explorer-in-Residence and the director of Genographic Project. It is a great and fascinating role he is playing. The goal of this project is to collect about 100,000 genetic samples from people around the world that live in still pristine conditions: that is they live in the same area their families lived for a long time. This information is stored in a database and by applying sophisticated algorithms; we should be able to determine how we have evolved in time, how we migrated and how we came to become the people of today. I was a little bit sceptical about this entire concept, but the book convinced me. You will have to read it to understand what really means. It is a powerful idea.
The book is based on five stories told people with very different backgrounds. Each story will astound you. You will also have a better understanding of what genetic archaeology is. If you are familiar with DNA, it will make even more sense to you. The DNA is seen more and more like a cryptic library that holds many secrets about our evolution. Segments of code will reveal relationships never thought possible. This book does not go that much in detail, but it does tell you the story in a nicely narrated style that takes you step by step through the various haplogroups patterns, like a detective, and come up with unexpected conclusions.
In the end you will see why scientists believe that the Adam and Eve, the original parents of all the people that populated this planet today, lived around 60,000 years ago in Africa. If you take the time to think about it, you realise how amazing this is. In 2,000 generations we evolved from an ape like humanoid to the generation of the Internet. The book will take you through the Ice Age, the disappearance of Neanderthal, the conquest of Asia, the mystery of Australian Aborigines, invasion of Americas and many other adventures. Back to Africa, you will get to know how genetically diverse this continent is. Did you know that two of the oldest haplogroups (tribes) still live in Africa today and probably they speak the oldest language, perhaps the first languages? These people speak the so-called click languages that are more sophisticated in the variety of sounds than our modern languages.
The book has also information about how to purchase a Genographic Project Public Participation Kit. For $99.95 you can get that kit, collect your DNA sample and send it to the project office. The results are kept confidentially in the project database and you will have secure access to your DNA profile. You can find more details at www.nationalgeographic.com/genographic.
I recommend this book to anyone curious about genetics, genealogy, history, evolution and genetic archaeology.
Help other customers find the most helpful reviews
Was this review helpful to you? Yes
No
77 of 78 people found the following review helpful:
5.0 out of 5 stars
Happiness is knowing your haplotype, January 4, 2007
The human diaspora from Africa that populated the world has been the subject of several recent studies. At first, these books were bulwarks against the tide of "Multi-regionalism" - the idea that an early version of our ancestral species evolved into Homo sapiens at different times and places. Genetic research, including that of the author, has shown that we're all descended from a small African population. Placing our origins on one continent simplifies the task of analysis of tracking our movements. In this book, Wells explains how the examination works and what it reveals of our ancestry.
The tool is "markers" on the genome. For females it was the DNA in mitochondria, the cell's "powerhouse". For males, it is changes on the Y chromosome, that molecular structure triggering a shift from the default embryo condition. The author demonstrates how these indicators are detected and how they allow us to track our ancestry back in time. The markers designate genetic "borders" between groups of people who share a common ancestor in the deep past. The groups are called "haplotypes" - for which Wells, at least in the case of Europe, uses the term "clan". There are seven of these clans - designated by letter labels such as "R", "J" or "N" - descended from male originators. The approach is reminiscent of Bryan Sykes "Seven Daughters of Eve" [2001], except Wells follows the male lineage where Sykes used mitochondrial DNA to source female origins. Both authors focus on the European records as being more complete and readily available. Wells also finds but five female lines as opposed to Sykes' seven.
Wells discusses how genetic "clocks" can postulate a rate of mutation over a long span of time to roughly determine the age of the haplogroup. Much of this assessment is sustained by archaeological record. The procedures pinpoint his own grandmother's ancestry, which is ostensibly Danish, to origins in the Middle East, some ten thousand years ago at the beginning of the adoption of agriculture. The shift to the Middle East leads Wells to examine people living today with roots in far corners of the world. One notable example is "Phil", whose Native American background becomes the start of a study of Siberian people. There have been many disputes about the origins of the Western Hemisphere's human settlers. Wells travelled to the Asian North to recover genetic data. The information clearly defines the link between Indian populations here and their ancestry in Eastern Asia.
Wells puts some effort into explaining how DNA works, what counts as a "mutation" and how these changes can be tracked down the generations. With enough samples from living populations in historically stable circumstances, he can provide maps of the distribution of the haplogroups and frequency of the haplotype in a given area. Ireland, for example, is populated almost exclusively by a single haplotype. He explains that The Genographic Project he heads is keen to collect more data, both to refine the European and Native American data, but to enlarge the information from other parts of the world. Clearly, this is a book "in progress", but stands firmly as a good basis for understanding the foundations of such research and its enlargement of knowledge of humanity. Although he states this book is "less technical" than his "The Journey of Man", there is sufficient information on how the data collection and analysis is undertaken to make the book readable and interesting to everybody. [stephen a. haines - Ottawa, Canada]
Help other customers find the most helpful reviews
Was this review helpful to you? Yes
No
57 of 57 people found the following review helpful:
3.0 out of 5 stars
Great ongoing story, but too similar to previous book, August 7, 2007
If you have read The Journey of Man: A Genetic Odyssey, you may find this book a bit of a let down. It is not that it is badly written, nor is the story uninteresting. It is just that the narrative has not advanced enough since the last book. There are some interesting additions, but a lot of repeat information. I would start with the DVD Journey of Man. After that you could read either book, but I recall enjoying Journey of Man better. Having said that, I will be looking for the next one because the research is fascinating.
Help other customers find the most helpful reviews
Was this review helpful to you? Yes
No
|
|
Most Recent Customer Reviews
|
