THE JOURNEY OF MAN A GENETIC ODYSSEY

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The Journey Of Man

Author : Spencer Wells
ISBN : 9780691176017
Genre : Reference
File Size : 86.69 MB
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Around 200,000 years ago, a man--identical to us in all important respects--lived in Africa. Every person alive today is descended from him. How did this real-life Adam wind up 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? Showing how the secrets about our ancestors are hidden in our genetic code, Spencer Wells reveals how developments in the cutting-edge science of population genetics have made it possible to create a family tree for the whole of humanity. We now know not only where our ancestors lived but who they fought, loved, and influenced. Informed by this new science, The Journey of Man is replete with astonishing information. Wells tells us that we can trace our origins back to a single Adam and Eve, but that Eve came first by some 80,000 years. We hear how the male Y-chromosome has been used to trace the spread of humanity from Africa into Eurasia, why differing racial types emerged when mountain ranges split population groups, and that the San Bushmen of the Kalahari have some of the oldest genetic markers in the world. We learn, finally with absolute certainty, that Neanderthals are not our ancestors and that the entire genetic diversity of Native Americans can be accounted for by just ten individuals. It is an enthralling, epic tour through the history and development of early humankind--as well as an accessible look at the analysis of human genetics that is giving us definitive answers to questions we have asked for centuries, questions now more compelling than ever.
Category: Reference

The Journey Of Man

Author : Spencer Wells
ISBN : 9780307830456
Genre : Science
File Size : 39.25 MB
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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.
Category: Science

The Journey Of Man

Author : Spencer Wells
ISBN : 069111532X
Genre : Science
File Size : 78.30 MB
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Traces the history and origins of human evolution, discussing how the human species spread out of Africa, why different races exist, and who our real ancestors are and are not.
Category: Science

Deep Ancestry

Author : Spencer Wells
ISBN : 1426201184
Genre : Science
File Size : 49.76 MB
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A scientist and explorer describes his ambitious genetic research project to map the ancient roots and mystery of human origins, explaining how an individual's DNA can provide a key piece in the puzzle of human history and his landmark efforts to test genetic profiles of people from around the world to trace the depths of our common origins. Reprint. 15,000 first printing.
Category: Science

The Journey Of Man

Author :
ISBN : OCLC:940488671
Genre :
File Size : 58.31 MB
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Evidence from paleoanthropology and genetics has consistently shown that our species originated in Africa. Recent results from the Y-chromosome confirm this, but further posit that all modern humans were still living in Africa 60,000 years ago. The case for a recent 'African exodus' will be discussed, with supporting evidence drawn from DNA polymorphisms, paleoclimatology and archaeology.
Category:

Pandora S Seed

Author : Spencer Wells
ISBN : 0679603743
Genre : Science
File Size : 39.16 MB
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Ten thousand years ago, our species made a radical shift in its way of life: We became farmers rather than hunter-gatherers. Although this decision propelled us into the modern world, renowned geneticist and anthropologist Spencer Wells demonstrates that such a dramatic change in lifestyle had a downside that we’re only now beginning to recognize. Growing grain crops ultimately made humans more sedentary and unhealthy and made the planet more crowded. The expanding population and the need to apportion limited resources created hierarchies and inequalities. Freedom of movement was replaced by a pressure to work that is the forebear of the anxiety millions feel today. Spencer Wells offers a hopeful prescription for altering a life to which we were always ill-suited. Pandora’s Seed is an eye-opening book for anyone fascinated by the past and concerned about the future.
Category: Science

It Ain T Necessarily So

Author : Richard C. Lewontin
ISBN : 0940322951
Genre : Science
File Size : 43.92 MB
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Is our nature—as individuals, as a species—determined by our evolution and encoded in our genes? If we unravel the protein sequences of our DNA, will we gain the power to cure all of our physiological and psychological afflictions and even to solve the problems of our society? Today biologists—especially geneticists—are proposing answers to questions that have long been asked by philosophy or faith or the social sciences. Their work carries the weight of scientific authority and attracts widespread public attention, but it is often based on what the renowned evolutionary biologist Richard Lewontin identifies as a highly reductive misconception: "the pervasive error that confuses the genetic state of an organism with its total physical and psychic nature as a human being." In these nine essays covering the history of modern biology from Darwin to Dolly the sheep, all of which were originally published in The New York Review of Books, Lewontin combines sharp criticisms of overreaching scientific claims with lucid expositions of the exact state of current scientific knowledge—not only what we do know, but what we don't and maybe won't anytime soon. Among the subjects he discusses are heredity and natural selection, evolutionary psychology and altruism, nineteenth-century naturalist novels, sex surveys, cloning, and the Human Genome Project. In each case he casts an ever-vigilant and deflationary eye on the temptation to look to biology for explanations of everything we want to know about our physical, mental, and social lives. These essays—several of them updated with epilogues that take account of scientific developments since they were first written—are an indispensable guide to the most controversial issues in the life sciences today. The second edition of this collection includes new essays on genetically modified food and the completion of the Human Genome Project. It is an indispensable guide to the most controversial issues in the life sciences today.
Category: Science

Evolution

Author : Carl Zimmer
ISBN : 9780062038234
Genre : Science
File Size : 36.39 MB
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This remarkable book presents a rich and up–to–date view of evolution that explores the far–reaching implications of Darwin's theory and emphasizes the power, significance, and relevance of evolution to our lives today. After all, we ourselves are the product of evolution, and we can tackle many of our gravest challenges –– from lethal resurgence of antiobiotic–resistant diseases to the wave of extinctions that looms before us –– with a sound understanding of the science.
Category: Science

The Cradle Of Humanity

Author : Mark Maslin
ISBN : 9780198704522
Genre : Science
File Size : 64.18 MB
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POPULAR SCIENCE. Humans are rather weak when compared with many other animals. We are not particular fast and have no natural weapons. Yet Homo sapiens currently number nearly 7.5 billion and are set to rise to nearly 10 billion by the middle of this century. We have influenced almost every part of the Earth system and as a consequence are changing the global environmental and evolutionary trajectory of the Earth. So how did we become the worlds apex predator and take over the planet? Fundamental to our success is our intelligence, not only individually but more importantly collectively. But why did evolution favour the brainy ape? Given the calorific cost of running our large brains, not to mention the difficulties posed for childbirth, this bizarre adaptation must have given our ancestors a considerable advantage.
Category: Science

The Atlas Of Human Migration

Author : Russell King
ISBN : 184971150X
Genre : Emigration and immigration
File Size : 75.46 MB
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Migration has provided millions with an escape route from poverty or oppression, ensuring the survival, even prosperity, of individuals and their families. New currents of human migration, triggered by ethnic cleansing or climate change or economic need, are appearing all the time and immigration has become one of today's most contested issues. This compelling new atlas maps contemporary migration against its crucial economic, social, cultural and demographic contexts. Drawing on data from one of the largest concentrations of migration research, the atlas traces the story of migration from its historical roots through the economic and conflict imperatives of the last 50 years to the causes and effects of flight today. Issues covered include: Refugees and asylum seekers Diasporas Remittances The 'brain drain Trafficking Student, retirement and return migration.
Category: Emigration and immigration