Deep Ancestry遥远的祖先 mobi 下载 网盘 caj lrf pdf txt 阿里云

The fossil record locates human origins in Africa, but little is known about the great journey that took Homo sapiens to the far reaches of the Earth. How did we, each of us, end up where we are? Why do we appear in such a wide array of different colours and features? Such questions are even more amazing in light of genetic evidence that we are all related - descended from a common African ancestor who lived only 60,000 years ago. Thanks to new genetic testing methods, we now know that the greatest history book ever written is the one hidden in our DNA. In Deep Ancestry", geneticist and explorer Spencer Wells unravels the slight changes in our DNA over time to tell the ancient story of our shared human journey. He also details the current work of The Genographic Project - the landmark five-year study, already underway at ten research laboratories around the globe, that will assemble the world's largest collection of DNA samples to map how humankind populated the planet.He describes how, over the next five years, the Project will use sophisticated computer analysis of DNA contributed by hundreds of thousands of people - including indigenous populations and the general public - to reveal man's migratory history and to better understand the connections and differences that make up the human race. The narrative works backward, starting from today and gradually working its way to humankind's common ancestors.From the beginning, the book taps into a reader's interest in genealogy, family history, and ethnic identity. Most of us have a decent sense of our family history, but eventually we all hit a brick wall. DNA takes us beyond it, and this is the unifying theme that will lead us from the stories of the present into the realm of deep ancestry. "Deep Ancestry" represents the very latest research on where we came from and relates them to our own personal quest to discover the deep ancestry behind our family genealogies and touch the depths of our common origins.

Introd uction

Chapter One The Block

　Chapter Two Odine's Story:The Exception

　Chapter Three Margaret's Story:The Hearth

　Chapter Four Phil's Story:The Ice

　Chapter Five Virumandi's Story:The Beach

　Chapter Six Julius's Story:The Cradle

Epilogue

　Appendix: Haplogroup Descriptions

　Glossary

　Further Reading

　About the Author

　Author Acknowledgments and Illustration Credits

Index

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作者介绍：Spencer Wells

　　Spencer Wells is an Explorer-in-Residence at the National Geographic Society and the director of the Genographic Project. After studying under genetic pioneer Luigi Cavalli-Sforza at Stanford University, he began an unusual career that mixes science, writing, and filmmaking. His acclaimed first book, The Journey of Man, combined his own DNA research with the work of archaeologists, paleoanthropologists, paleoclimatologists, and linguists to show how modern humans came to populate the planet.

书籍介绍

The fossil record locates human origins in Africa, but little is known about the great journey that took Homo sapiens to the far reaches of the Earth. How did we, each of us, end up where we are? Why do we appear in such a wide array of different colours and features? Such questions are even more amazing in light of genetic evidence that we are all related - descended from a common African ancestor who lived only 60,000 years ago. Thanks to new genetic testing methods, we now know that the greatest history book ever written is the one hidden in our DNA. In Deep Ancestry", geneticist and explorer Spencer Wells unravels the slight changes in our DNA over time to tell the ancient story of our shared human journey. He also details the current work of The Genographic Project - the landmark five-year study, already underway at ten research laboratories around the globe, that will assemble the world's largest collection of DNA samples to map how humankind populated the planet.He describes how, over the next five years, the Project will use sophisticated computer analysis of DNA contributed by hundreds of thousands of people - including indigenous populations and the general public - to reveal man's migratory history and to better understand the connections and differences that make up the human race. The narrative works backward, starting from today and gradually working its way to humankind's common ancestors.From the beginning, the book taps into a reader's interest in genealogy, family history, and ethnic identity. Most of us have a decent sense of our family history, but eventually we all hit a brick wall. DNA takes us beyond it, and this is the unifying theme that will lead us from the stories of the present into the realm of deep ancestry. "Deep Ancestry" represents the very latest research on where we came from and relates them to our own personal quest to discover the deep ancestry behind our family genealogies and touch the depths of our common origins.