Ebook Domesticated Evolution in a Man-Made World
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Without our domesticated plants and animals, human civilization as we know it would not exist. We would still be living at subsistence level as hunter-gatherers if not for domestication. It is no accident that the cradle of civilizationthe Middle Eastis where sheep, goats, pigs, cattle, and cats commenced their fatefully intimate association with humans. Before the agricultural revolution, there were perhaps 10 million humans on earth. Now there are more than 7 billion of us. Our domesticated species have also thrived, in stark contrast to their wild ancestors. In a human-constructed environmentor man-made worldit pays to be domesticated. Domestication is an evolutionary process first and foremost. What most distinguishes domesticated animals from their wild ancestors are genetic alterations resulting in tameness, the capacity to tolerate close human proximity. But selection for tameness often results in a host of seemingly unrelated by-products, including floppy ears, skeletal alterations, reduced aggression, increased sociality, and reduced brain size. It's a package deal known as the domestication syndrome. Elements of the domestication syndrome can be found in every domesticated speciesnot only cats, dogs, pigs, sheep, cattle, and horses but also more recent human creations, such as domesticated camels, reindeer, and laboratory rats. That domestication results in this suite of changes in such a wide variety of mammals is a fascinating evolutionary story, one that sheds much light on the evolutionary process in general. We humans, too, show signs of the domestication syndrome, which some believe was key to our evolutionary success. By this view, human evolution parallels the evolution of dogs from wolves, in particular. A natural storyteller, Richard C. Francis weaves history, archaeology, and anthropology to create a fascinating narrative while seamlessly integrating the most cutting-edge ideas in twenty-first-century biology, from genomics to evo-devo. 100 illustrations The Stone Age - World history New Stone Age The term neolithic is used especially in archaeology and anthropology to designate a stage of cultural evolution or technological development Charles Darwin: gentleman naturalist Charles Darwin: gentleman naturalist A biographical sketch by John van Wyhe C HARLES Robert Darwin (1809-1882) was born the fifth of six children into a wealthy Evolution of Modern Humans: Early Modern Homo sapiens Early Modern Homo sapiens A ll people today are classified as Homo sapiens Our species of humans first began to evolve nearly 200000 years ago in association with Wildlife Online - Natural History of the Red Fox RED FOX Vulpes vulpes Content Updated: 3rd September 2015 CONTENTS: Evolution and Early Distribution Taxonomy North American Red foxes British Red foxes Understanding Evolution: History Theory Evidence and Understanding Evolution: History Theory Evidence and Implications By - March 5 2006 Updated - May 2 2006 Index Introduction; Origin Mythology Wealth - UNLIMITED What do we mean by wealth? The way we define and display wealth is undergoing a radical change Over the past 400 hundred years our approach to wealth has History of Carrots - World Carrot Museum The History development and evolution of the carrot Both the wild and the cultivated carrots belong to the species Daucus carota Science Creation and Evolutionism (refutation of NAS Science Creation and Evolutionism Response to the latest anticreationist agitprop from the US National Academy of Sciences (NAS) Science Evolution and Creationism Cat - Wikipedia The cat skull is unusual among mammals in having very large eye sockets and a powerful and specialized jaw:35 Within the jaw cats have teeth adapted for killing BBC - History - Ancient History in depth: Overview: From The British Isles have been populated by human beings for hundreds of thousands of years but it was the introduction of farming around 7000 years ago
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