This book explores the relationship between various types of reproduction and the evolutionary process. Starting with the concept of meiosis, George C. Williams states the conditions under which an organism with both sexual and asexual reproductive capacities will employ each mode. He argues that in low-fecundity higher organisms, sexual reproduction is generally maladaptive, and persists because there is no ready means of developing an asexual alternative. The book then considers the evolutionary development of diverse forms of sexuality, such as anisogamy, hermaphroditism. and the evolution of differences between males and females in reproductive strategy. The final two chapters examine the effect of genetic recombination on the evolutionary process itself.
In Plan and Purpose in Nature George C. Williams examines Darwinian evolution in the natural world. He tells the story not only of adaptations which natural selection produces through nature, but also the limitations of evolution for modern human beings, and how the rapid evolution of micro-organisms is likely to pose an alarming threat to human health.
The next time you get sick, consider this before picking up the aspirin: your body may be doing exactly what it's supposed to. In this ground-breaking book, two pioneers of the science of Darwinian medicine argue that illness as well as the factors that predispose us toward it are subject to the same laws of natural selection that otherwise make our bodies such miracles of design. Among the concerns they raise: When may a fever be beneficial? Why do pregnant women get morning sickness? How do certain viruses "manipulate" their hosts into infecting others? What evolutionary factors may be responsible for depression and panic disorder? Deftly summarizing research on disorders ranging from allergies to Alzheimer's, and form cancer to Huntington's chorea, Why We Get Sick, answers these questions and more. The result is a book that will revolutionize our attitudes toward illness and will intrigue and instruct lay person and medical practitioners alike.
We may regard ourselves as the most advanced species on the planet, but have we really reached our optimum design? Isn't't there always room for improvements? Before you answer, let noted evolutionary biologist George C. Williams remind you of both the exquisite adaptations and absurd maladaptations nature has bestowed upon us, the self-proclaimed "pinnacle of evolution."Picking up where Darwin left off, Williams combines philosophical perspective and scientific method to provide a foundation for the answers to some fascinating questions. He explains why our bodies have to deteriorate so disastrously with old age. He gives us logical reasons to explain why we crave foods like sugar and fat that have been proven time and again to be detrimental to our health. And Williams single-handedly deflates our Homo sapiens sapiens ego with such insights as: Our eyesight -- it may seem superior, but not when compared to that of the invertebrate squid, whose eye has developed over time to prove more efficient than ours. And wouldn't't it make more sense to have a third eye, located on the back of the head? We could have stereoscopic vision in front and rear-vision warning us of danger sneaking up behind. Rear-view mirrors would become a thing of the past. And why stop at three eyes? This fascinating new book is markedly different from all previous work on evolutionary biology. Using the pony fish and its luminescent abdomen as the perfect evolutionary mystery, Williams explores the intricacies of nature's designs. Rather than telling us how or why the pony fish got its light, Williams explains the functional reasons why the pony fish keeps its light. He also explains why our species keeps arbitrary or malfunctioned features like the reproductive and excretory systems' sharing of parts. George C. Williams, one of today's most qualified evolutionary biologists, has written an important, entertaining, and thought-provoking addition to a science that has captivated the world for almost 150 years.
In this work, George C. Williams--one of evolutionary biology's most distinguished scholars--examines the mechanisms and meaning of natural selection in evolution. Williams offers his own perspective on modern evolutionary theory, including discussions of the gene as the unit of selection, clade selection and macroevolution, diversity within and among populations, stasis, and other timely and provocative topics. In dealing with the levels-of-selection controversy, he urges a pervasive form of the replicator-vehicle distinction. Natural selection, he argues, takes place in the separate domains of information and matter. Levels-of-selection questions, consequently, require different theoretical devices depending on the domains being discussed. In addressing these topics, Williams presents a synthesis of his three decades of research and creative thought which have contributed greatly to evolutionary biology in this century.
Biological evolution is a fact—but the many conflicting theories of evolution remain controversial even today. When Adaptation and Natural Selection was first published in 1966, it struck a powerful blow against those who argued for the concept of group selection—the idea that evolution acts to select entire species rather than individuals. Williams’s famous work in favor of simple Darwinism over group selection has become a classic of science literature, valued for its thorough and convincing argument and its relevance to many fields outside of biology. Now with a new foreword by Richard Dawkins, Adaptation and Natural Selection is an essential text for understanding the nature of scientific debate.
George C. Williams explains how evolution can produce remarkable adaptations in the natural world, and examines how the same process can also produce design flaws that can cause serious problems in living things - including in human beings. Plan and Purpose in Nature is a brilliant survey of Darwinian evolution in the natural world. It tells the story not only of the wonderful adaptations which the process of the natural selection produces throughout nature, but also the limitations of evolution for the 20th century human beings, which environment and diet have changed drastically while their biology and psychology have not.
T. H. Huxley (1825-1895) was not only an active protagonist in the religious and scientific upheaval that followed the publication of Darwin's theory of evolution but also a harbinger of the sociobiological debates about the implications of evolution that are now going on. His seminal lecture Evolution and Ethics, reprinted here with its introductory Prolegomena, argues that the human psyche is at war with itself, that humans are alienated in a cosmos that has no special reference to their needs, and that moral societies are of necessity in conflict with the natural conditions of their existence. Seen in the light of current understanding of the mechanisms of evolution, these claims remain as controversial today as they were when Huxley proposed them. In this volume George Williams, one of the best-known evolutionary biologists of our time, asserts that recent biological ideas and data justify a more extreme condemnation of the "cosmic process" than Huxley advocated and more extreme denial that the forces that got us here are capable of maintaining a viable world. James Paradis, an expert in Victorian studies, has written an introduction that sets the celebrated lecture in the context of cultural history, revealing it to be an impressive synthesis of Victorian thinking, as well as a challenge to eighteenth-century assumptions about the harmony of of nature. With Huxley's lecture as a focal point, the three parts of this book unite philosophy and science in a shared quest that recalls their common origins as systems of knowledge. Originally published in 1989. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.
Living things are constantly engaged in a struggle for existence, and ingenious devices for the purpose of self-preservation can be seen in all types of animal and plant life. However, nature also displays phenomena that are not related to survival or that seem clearly to violate the principle of self-preservation - particularly when organisms interact with one another. Darwin investigated these apparent contradictions and proposed that both mechanisms of self preservation and those of reproduction are explained by a more basic principle of "natural selection" - the reproductive survival of the fittest. George C. Williams in "Group Selection" challenges the adequacy of this process of selection at the individual level.Williams has here collected the work of the chief partisans with opposed viewpoints on the theory of selection at the group level to state their arguments and rebuttals. A minority of modern biologists offer evidence to show that groups of living things are organized to assure their collective survival; they are not merely collections of individuals designed for their own survival and reproduction. In opposition, defenders of the traditional point of view charge that mechanisms of group survival are based on illusion and misinterpretation.Because of the wide range of opinion expressed in "Group Selection", the reader is exposed to all sides of the dispute and encouraged to form his or her own views. In addition, as a source book on current evolutionary issues or for research or reference material, "Group Selection" remains a valuable addition to every personal and institutional library in the biological sciences.
This book explores the relationship between various types of reproduction and the evolutionary process. Starting with the concept of meiosis, George C. Williams states the conditions under which an organism with both sexual and asexual reproductive capacities will employ each mode. He argues that in low-fecundity higher organisms, sexual reproduction is generally maladaptive, and persists because there is no ready means of developing an asexual alternative. The book then considers the evolutionary development of diverse forms of sexuality, such as anisogamy, hermaphroditism. and the evolution of differences between males and females in reproductive strategy. The final two chapters examine the effect of genetic recombination on the evolutionary process itself.
The only way to teach science is to do science. The combination of teaching and doing involves three elements: knowing content, teachers knowing and understanding themselves as teachers and learners, and, most importantly, knowing children. Kerry C. Williams and George E. Veomett describe principles and requirements that reflect the National Science Education Standards for the active learning of science. They brilliantly identify key ingredients for primary students and outline the best course of action to aid their development as young scientists. Using research on cognitive and neural development and motivational theory from the work of Piaget and Vygotsky, this is an invaluable tool for teachers inexperienced in science. It will help you discover new ways to think about science and develop lessons that are rich, fun, and authentic for both you and your students. All educators will find examples, questions, stories, and thought-provoking ideas to give students a strong start in science achievement, plus: • Six key elements to build into science instruction: observing, representing, organizing, patterning and questioning, experimenting, and sharing • How-to's for incorporating inquiry, workshops, centers, and projects in primary and elementary classrooms • A four-step system—choice, planning, doing, reviewing—that helps promote learning in science and across all subjects
Plan and Purpose in Nature is a brilliant survey of Darwinian evolution in the natural world. It tells the story not only of the wonderful adaptations which the process of the natural selection produces throughout nature,but also the limitations of evolution for the 20th century human beings,which environment and diet have changed drastically while their biology and psychology have not.
Examining the mechanism and action of natural selection in evolution, the author offers his own synthesis of modern evolutionary theory, including discussions of the gene as the unit of selection, clade selection and macroevolution, diversity within and among populations, and other central issues.
T. H. Huxley (1825-1895) was not only an active protagonist in the religious and scientific upheaval that followed the publication of Darwin's theory of evolution but also a harbinger of the sociobiological debates about the implications of evolution that are now going on. His seminal lecture Evolution and Ethics, reprinted here with its introductory Prolegomena, argues that the human psyche is at war with itself, that humans are alienated in a cosmos that has no special reference to their needs, and that moral societies are of necessity in conflict with the natural conditions of their existence. Seen in the light of current understanding of the mechanisms of evolution, these claims remain as controversial today as they were when Huxley proposed them. In this volume George Williams, one of the best-known evolutionary biologists of our time, asserts that recent biological ideas and data justify a more extreme condemnation of the "cosmic process" than Huxley advocated and more extreme denial that the forces that got us here are capable of maintaining a viable world. James Paradis, an expert in Victorian studies, has written an introduction that sets the celebrated lecture in the context of cultural history, revealing it to be an impressive synthesis of Victorian thinking, as well as a challenge to eighteenth-century assumptions about the harmony of of nature. With Huxley's lecture as a focal point, the three parts of this book unite philosophy and science in a shared quest that recalls their common origins as systems of knowledge. Originally published in 1989. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.
Living things are constantly engaged in a struggle for existence, and ingenious devices for the purpose of self-preservation can be seen in all types of animal and plant life. However, nature also displays phenomena that are not related to survival or that seem clearly to violate the principle of self-preservation - particularly when organisms interact with one another. Darwin investigated these apparent contradictions and proposed that both mechanisms of self preservation and those of reproduction are explained by a more basic principle of "natural selection" - the reproductive survival of the fittest. George C. Williams in "Group Selection" challenges the adequacy of this process of selection at the individual level.Williams has here collected the work of the chief partisans with opposed viewpoints on the theory of selection at the group level to state their arguments and rebuttals. A minority of modern biologists offer evidence to show that groups of living things are organized to assure their collective survival; they are not merely collections of individuals designed for their own survival and reproduction. In opposition, defenders of the traditional point of view charge that mechanisms of group survival are based on illusion and misinterpretation.Because of the wide range of opinion expressed in "Group Selection", the reader is exposed to all sides of the dispute and encouraged to form his or her own views. In addition, as a source book on current evolutionary issues or for research or reference material, "Group Selection" remains a valuable addition to every personal and institutional library in the biological sciences.
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