The Journey of Man: A Genetic Odyssey
Random House Trade Paperbacks, 2003 - 218 pages
Around 60,000 years ago, a man—genetically identical to us—lived in Africa. Every person alive today is descended from him. How did this real-life Adam wind up as the father of us all? What happened to the descendants of other men who lived at the same time? And why, if modern humans share a single prehistoric ancestor, do we come in so many sizes, shapes, and races?
Examining the hidden secrets of human evolution in our genetic code, Spencer Wells reveals how developments in the revolutionary science of population genetics have made it possible to create a family tree for the whole of humanity. Replete with marvelous anecdotes and remarkable information, from the truth about the real Adam and Eve to the way differing racial types emerged, The Journey of Man is an enthralling, epic tour through the history and development of early humankind.
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Genetic variation was critical for the study of human diversity because is it is
genetic change that actually produces evolution . At its most basic level ,
evolution is simply a change in the genetic composition of a species over time .
Thus in order ...
They simply represent the time , peering back into the past , when we stop seeing
genetic diversity in our mtDNA and Y - chromosome lineages . Since mtDNA and
the Y - chromosome are completely independent parts of our genetic tapestry ...
Of course , it is simply the terminal marker in a long line of genealogical descent
that traces back to M168 and our African Adam . The penultimate marker , though
, actually solves the mystery of where the earliest Europeans came from .
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Review: The Journey of Man: A Genetic OdysseyUser Review - Joe - Goodreads
Conclusion of Wells' work is that we're all descendants of a single man who lived in Africa about 20,000 years ago. And he is convincing! Very interesting book, with some genetic science thrown in to spice it up (but it doesn't get in the way). Read full review
LibraryThing ReviewUser Review - snash - LibraryThing
The book presents a picture of man's migrations between 60,000 and 10,000 years ago. It is a companion book with the TV special and provides more background into the scientific rational of the study and its conclusions. It is presented in a manner quite understandable to the lay person. Read full review