John Tyler Bonner, one of our most distinguished and creative biologists, here offers a completely new perspective on the role of size in biology. In his hallmark friendly style, he explores the universal impact of being the right size. By examining stories ranging from Alice in Wonderland to Gulliver's Travels, he shows that humans have always been fascinated by things big and small. Why then does size always reside on the fringes of science and never on the center stage? Why do biologists and others ponder size only when studying something else—running speed, life span, or metabolism? Why Size Matters, a pioneering book of big ideas in a compact size, gives size its due by presenting a profound yet lucid overview of what we know about its role in the living world. Bonner argues that size really does matter—that it is the supreme and universal determinant of what any organism can be and do. For example, because tiny creatures are subject primarily to forces of cohesion and larger beasts to gravity, a fly can easily walk up a wall, something we humans cannot even begin to imagine doing. Bonner introduces us to size through the giants and dwarfs of human, animal, and plant history and then explores questions including the physics of size as it affects biology, the evolution of size over geological time, and the role of size in the function and longevity of living things. As this elegantly written book shows, size affects life in its every aspect. It is a universal frame from which nothing escapes.

Professor Bonner has rewritten more than half of this standard treatise to take account of the great amount of recent research on the cellular slime molds. He has included a larger selection of material, more figures and new plates. The bibliography has been greatly enlarged. Originally published in 1967. 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.

John Tyler Bonner, a major participant in the development of biology as an experimental science, is the author not only of important monographs but also of a wonderfully readable book, Life Cycles, which is both a personal memoir and a profound commentary on the central themes of biology. This volume of essays presents new material that extends the concepts from Life Cycles and his other writings. Its originality lies in comparing key basic biological processes at different levels, from molecular interactions through multicellular development to behavior and social interactions. The first chapter in the book discusses self-organization and natural selection; the second, competition and natural selection; and the third, gene accumulation and gene silencing. The fourth chapter examines the division of labor in organisms at all levels: within the organelles of a cell, within groups of cells in the guise of differentiation, within groups of individuals in an animal society, and within our culturally determined human societies. The work closes with a charming personal history of sixty years of changes in the field of biology, including the transformation in the ways that research work is funded. Originally published in 1996. 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.

Noted biologist and author John Tyler Bonner has experimented with cellular slime molds for more than sixty years, and he has done more than anyone else to raise these peculiar collections of amoebae from a minor biological curiosity to a major model organism--one that is widely studied for clues to the development and evolution of all living things. Now, five decades after he published his first pioneering book on cellular slime molds, Bonner steps back from the proliferating and increasingly specialized knowledge about the organism to provide a broad, nontechnical picture of its whole biology, including its evolution, sociobiology, ecology, behavior, and development. "The Social Amoebae" draws the big lessons from decades of research, and shows how slime molds fit into and illuminate biology as a whole.

Slime molds are very different from other organisms; they feed as individual amoebae before coming together to form a multicellular organism that has a remarkable ability to move and orient itself in its environment. Furthermore, these social amoebae display a sophisticated division of labor; within each organism, some cells form the stalk and others become the spores that will seed the next generation. In "The Social Amoebae," Bonner examines all these parts together, giving a balanced, concise, and clear overview of slime mold biology, from molecules to cells to multicells, as he advances some unconventional and unexpected insights.

Within a single captivating narrative, John Bonner combines an intensely personal memoir of scientific progress and an overview of what we now know about living things. Bonner, a major participant in the development of biology as an experimental science, draws on his life-long study of slime molds for an understanding of the life cycle-the foundation of all biology. In an age of increasing specialization and fragmentation among subfields of biology, this is a unique work of reflection and integration. Originally published in 1993. 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.

John Tyler Bonner, one of our most distinguished and insightful biologists, here challenges a central tenet of evolutionary biology. In this concise, elegantly written book, he makes the bold and provocative claim that some biological diversity may be explained by something other than natural selection.

With his customary wit and accessible style, Bonner makes an argument for the underappreciated role that randomness--or chance--plays in evolution. Due to the tremendous and enduring influence of Darwin's natural selection, the importance of randomness has been to some extent overshadowed. Bonner shows how the effects of randomness differ for organisms of different sizes, and how the smaller an organism is, the more likely it is that morphological differences will be random and selection may not be involved to any degree. He traces the increase in size and complexity of organisms over geological time, and looks at the varying significance of randomness at different size levels, from microorganisms to large mammals. Bonner also discusses how sexual cycles vary depending on size and complexity, and how the trend away from randomness in higher forms has even been reversed in some social organisms.

Certain to provoke lively discussion, "Randomness in Evolution" is a book that may fundamentally change our understanding of evolution and the history of life.

John Tyler Bonner, a major participant in the development of biology as an experimental science, is the author not only of important monographs but also of a wonderfully readable book, Life Cycles, which is both a personal memoir and a profound commentary on the central themes of biology. This volume of essays presents new material that extends the concepts from Life Cycles and his other writings. Its originality lies in comparing key basic biological processes at different levels, from molecular interactions through multicellular development to behavior and social interactions. The first chapter in the book discusses self-organization and natural selection; the second, competition and natural selection; and the third, gene accumulation and gene silencing. The fourth chapter examines the division of labor in organisms at all levels: within the organelles of a cell, within groups of cells in the guise of differentiation, within groups of individuals in an animal society, and within our culturally determined human societies. The work closes with a charming personal history of sixty years of changes in the field of biology, including the transformation in the ways that research work is funded. Originally published in 1996. 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.

A discussion of life cycles and individual size in organisms, and of the relationships between the two, and of their conjoint role in evolution. Originally published in 1965. 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.

The howling monkeys of Barro Colorado Island in Panama have a rudimentary language which serves the needs of their social activities. The red deer of Scotland, the seals of the Pribilof Islands, the beavers, the social insects, the army ants and termites, and lastly the colonial and single-celled organisms such as amoebae all meet the same basic biological necessities of feeding, reproduction, and social coordination. Though the means of meeting the requirements are amazingly varied, Mr. Bonner shows that these three functions form a basic pattern that can be recognized in amoebae, in monkeys, and in man-in fact wherever life occurs. Originally published in 1955. 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.

In the current resurgence of interest in the biological basis of animal behavior and social organization, the ideas and questions pursued by Charles Darwin remain fresh and insightful. This is especially true of "The Descent of Man and Selection in Relation to Sex," Darwin's second most important work. This edition is a facsimile reprint of the first printing of the first edition (1871), not previously available in paperback.

The work is divided into two parts. Part One marshals behavioral and morphological evidence to argue that humans evolved from other animals. Darwin shoes that human mental and emotional capacities, far from making human beings unique, are evidence of an animal origin and evolutionary development. Part Two is an extended discussion of the differences between the sexes of many species and how they arose as a result of selection. Here Darwin lays the foundation for much contemporary research by arguing that many characteristics of animals have evolved not in response to the selective pressures exerted by their physical and biological environment, but rather to confer an advantage in sexual competition. These two themes are drawn together in two final chapters on the role of sexual selection in humans.

In their Introduction, Professors Bonner and May discuss the place of "The Descent" in its own time and relation to current work in biology and other disciplines.

Ich bin mir des vernichtenden Kommentars bewusst, der hinter den Ku- lissen getuschelt wird - namlich, dass ich wie ein Professor klinge -, aber nach all den professoralen Jahren ist es mir fast unmoeglich, die Hauptbe- schaftigung meines Lebens zu verbergen. Seit uber vierzig Jahren habe ich den Kursus allgemeine Biologie fur Anfanger und Fortgeschrittene Eines Tages besuchte mich eine an der Universitat Princeton gelehrt. Soziologiestudentin und bat mich um ein Interview im Rahmen ihrer Diplomarbeit. Es stellte sich heraus, dass sie Lehren mit Schauspielen vergleichen wollte. Da hatte ich mehr Fragen an sie als sie an mich. Sie machte die interessante Bemerkung, dass beide, Lehrer wie Schauspieler, um ihre Wirkung auf das Publikum besorgt sind. Trotzdem haben sie ein unterschiedliches Problem; der Schauspieler gibt jedesmal die gleiche Vorstellung vor wechselnden Zuschauern, wahrend der Lehrer Tag ein, Tag aus vor den selben Zuhoerern etwas Verschiedenes bringen muss (und hoffentlich Spannendes). Manchmal hinterlassen die unmoeglichsten Dinge den groessten Eindruck im Kopf der Zuhoerer. Ich machte diese Er- fahrung, als ich die allererste Vorlesung in Princeton vor Erstsemester- studenten (damals gab es keine Studentinnen) hielt. In der Mitte der Vorlesung sturzte ich vom Podium und setzte mich unsanft auf den Bo- den. Es gab grossen Beifall, offenbar der Hoehepunkt der Lektion.

The howling monkeys of Barro Colorado Island in Panama have a rudimentary language which serves the needs of their social activities. The red deer of Scotland, the seals of the Pribilof Islands, the beavers, the social insects, the army ants and termites, and lastly the colonial and single-celled organisms such as amoebae all meet the same basic biological necessities of feeding, reproduction, and social coordination. Though the means of meeting the requirements are amazingly varied, Mr. Bonner shows that these three functions form a basic pattern that can be recognized in amoebae, in monkeys, and in man-in fact wherever life occurs. Originally published in 1955. 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.

Within a single captivating narrative, John Bonner combines an intensely personal memoir of scientific progress and an overview of what we now know about living things. Bonner, a major participant in the development of biology as an experimental science, draws on his life-long study of slime molds for an understanding of the life cycle-the foundation of all biology. In an age of increasing specialization and fragmentation among subfields of biology, this is a unique work of reflection and integration. Originally published in 1993. 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.

Professor Bonner has rewritten more than half of this standard treatise to take account of the great amount of recent research on the cellular slime molds. He has included a larger selection of material, more figures and new plates. The bibliography has been greatly enlarged. Originally published in 1967. 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.

A discussion of life cycles and individual size in organisms, and of the relationships between the two, and of their conjoint role in evolution. Originally published in 1965. 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.

John Tyler Bonner makes a new attack on an old problem: the question of how progressive increase in the size and complexity of animals and plants has occurred. "How is it," he inquires, "that an egg turns into an elaborate adult? How is it that a bacterium, given many millions of years, could have evolved into an elephant?" The author argues that we can understand this progression in terms of natural selection, but that in order to do so we must consider the role of development--or more precisely the role of life cycles--in evolutionary change. In a lively writing style that will be familiar to readers of his work The Evolution of Culture in Animals (Princeton, 1980), Bonner addresses a general audience interested in biology, as well as specialists in all areas of evolutionary biology.

What is novel in the approach used here is the comparison of complexity inside the organism (especially cell differentiation) with the complexity outside (that is, within an ecological community). Matters of size at both these levels are closely related to complexity. The book shows how an understanding of the grand course of evolution can come from combining our knowledge of genetics, development, ecology, and even behavior.

The enormous recent success of molecular developmental biology has yielded a vast amount of new information on the details of development. So much so that we risk losing sight of the underlying principles that apply to all development. To cut through this thicket, John Tyler Bonner ponders a moment in evolution when development was at its most basic--the moment when signaling between cells began. Although multicellularity arose numerous times, most of those events happened many millions of years ago. Many of the details of development that we see today, even in simple organisms, accrued over a long evolutionary timeline, and the initial events are obscured. The relatively uncomplicated and easy-to-grow cellular slime molds offer a unique opportunity to analyze development at a primitive stage and perhaps gain insight into how early multicellular development might have started.

Through slime molds, Bonner seeks a picture of the first elements of communication between cells. He asks what we have learned by looking at their developmental biology, including recent advances in our molecular understanding of the process. He then asks what is the most elementary way that polarity and pattern formation can be achieved. To find the answer, he uses models, including mathematical ones, to generate insights into how cell-to-cell cooperation might have originated. Students and scholars in the blossoming field of the evolution of development, as well as evolutionary biologists generally, will be interested in what Bonner has to say about the origins of multicellular development--and thus of the astounding biological complexity we now observe--and how best to study it.

Animals do have culture, maintains this delightfully illustrated and provocative book, which cites a number of fascinating instances of animal communication and learning. John Bonner traces the origins of culture back to the early biological evolution of animals and provides examples of five categories of behavior leading to nonhuman culture: physical dexterity, relations with other species, auditory communication within a species, geographic locations, and inventions or innovations. Defining culture as the transmission of information by behavioral rather than genetical means, he demonstrates the continuum between the traits we find in animals and those we often consider uniquely human.

Beginning with the discovery of genes on chromosomes and culminating with the unmasking of the most minute genetic mysteries, the twentieth century saw astounding and unprecedented progress in the science of biology. In an illustrious career that spanned most of the century, biologist John Bonner witnessed many of these advances firsthand. Part autobiography, part history of the extraordinary transformation of biology in his time, Bonner's book is truly a life in science, the story of what it is to be a biologist observing the unfolding of the intricacies of life itself.

Bonner's scientific interests are nearly as varied as the concerns of biology, ranging from animal culture to evolution, from life cycles to the development of slime molds. And the extraordinary cast of characters he introduces is equally diverse, among them Julian Huxley, J. B. S. Haldane, Leon Trotsky, and Evelyn Waugh. Writing with a charm and freshness that bring the most subtle nuances of science to life, he pursues these interests through the hundred years that gave us the discovery of embryonic induction; the interpretation of evolution in terms of changes in gene frequency in a population; growth in understanding of the biochemistry of the cell; the beginning of molecular genetics; remarkable insights into animal behavior; the emergence of sociobiology; and the simplification of ecological and evolutionary principles by means of mathematical models. In this panoramic view, we see both the sweep of world events and scientific progress and the animating details, the personal observations and experiences, of a career conducted in their midst.

In Bonner's view, biology is essentially the study of life cycles. His book, marking the cycles of a life in biology, is a fitting reflection of this study, with its infinite, and infinitesimal, permutations.

Why do living things and physical phenomena take the form they do? D'Arcy Thompson's classic On Growth and Form looks at the way things grow and the shapes they take. Analysing biological processes in their mathematical and physical aspects, this historic work, first published in 1917, has also become renowned for the sheer poetry of its descriptions. A great scientist sensitive to the fascinations and beauty of the natural world tells of jumping fleas and slipper limpets; of buds and seeds; of bees' cells and rain drops; of the potter's thumb and the spider's web; of a film of soap and a bubble of oil; of a splash of a pebble in a pond.

John Tyler Bonner, one of our most distinguished and creative biologists, here offers a completely new perspective on the role of size in biology. In his hallmark friendly style, he explores the universal impact of being the right size. By examining stories ranging from Alice in Wonderland to Gulliver's Travels, he shows that humans have always been fascinated by things big and small. Why then does size always reside on the fringes of science and never on the center stage? Why do biologists and others ponder size only when studying something else--running speed, life span, or metabolism?

"Why Size Matters," a pioneering book of big ideas in a compact size, gives size its due by presenting a profound yet lucid overview of what we know about its role in the living world. Bonner argues that size really does matter--that it is the supreme and universal determinant of what any organism can be and do. For example, because tiny creatures are subject primarily to forces of cohesion and larger beasts to gravity, a fly can easily walk up a wall, something we humans cannot even begin to imagine doing.

Bonner introduces us to size through the giants and dwarfs of human, animal, and plant history and then explores questions including the physics of size as it affects biology, the evolution of size over geological time, and the role of size in the function and longevity of living things.

As this elegantly written book shows, size affects life in its every aspect. It is a universal frame from which nothing escapes.

On Development is, as John Tyler Bonner says, "a book on ideas," the ideas at stake in the contest to unravel the mechanisms of life. This fluent discussion of developmental biology synthesizes decades of intensive progress in specialized areas of the science: from the dramatic deciphering of the genetic code to detailed analyses of animal behavior patterns. Placing these discoveries in an evolutionary context, Bonner explores the continuities and the transitoriness of individual lives and individual forms. He begins by discussing the ubiquity among organisms of developmental cycles and their universal properties, including senescence and death. He argues that the life cycle itself is an object of natural selection and shows how, in any species, it reflects the evolutionary tradeoff between energy requirements of the individual and reproductive efficiency of the species. Although nucleic acids are thought to be the ultimate and fundamental source of genetic regulation, Bonner points out that a massive amount of information required for normal development is not directly controlled by nuclear DNA during the life cycle. Each life cycle is governed by some immediate instructions from the genes and by many gene-initiated instructions that were given in previous life cycles and have accumulated in various parts of the fertilized egg. All of these instructions taken together govern the development of a new organism. Acknowledging the great value of reductionist theories in biology, Bonner constructs his synthetic view of development without resorting to vitalist concepts or to hand-waving explanations. He draws examples and evidence from more than half a century of biological research, from sources as diverse as Spemann and Spiegelman. Certain organisms, such as the cellular slime molds, upon which Bonner himself has conducted a number of original experiments, and the social insects provide crucial examples of dramatic evolutionary increments in biological complexity and offer insight into the control mechanisms that make such advances possible.