The Mechanosensory Lateral Line


Book Description

This volume represents the published proceedings of an international conference on the Neurobiology and Evolution of the Mechanosensory Lateral Line System held August 31 to September 4, 1987, at the Center for Interdisciplinary Research at the University of Bielefeld, West Germany. The goal of this confer ence was to bring together researchers from all over the world to share informa tion about a major aquatic sensory system, the evolution and function of which have largely remained an enigma since the 18th century. The "lateral line" or "lateralis" system has been used as an umbrella term to describe what originally (without the aid of modern anatomical techniques) looked like a series of pits, grooves, and lines on the head and trunk of fishes and some amphibians. For at least the past 30 years, however, it has been recognized that the lateralis system comprises not one, but at least two functional classes of receptors: mechanoreceptors and electroreceptors. The relative ease with which the appropriate stimulus could be defined and measured for the electroreceptive class has resulted in an explosion of information on this submodality during the past 20 years. As a result, there is little ambiguity about the overall function of the electrosensory system, now generally regarded as an independent system in its own right. A similarly clear definition for the function of the mechanosensory lateralis system has not been as forthcoming.







Relentless Evolution


Book Description

At a glance, most species seem adapted to the environment in which they live. Yet species relentlessly evolve, and populations within species evolve in different ways. Evolution, as it turns out, is much more dynamic than biologists realized just a few decades ago. In Relentless Evolution, John N. Thompson explores why adaptive evolution never ceases and why natural selection acts on species in so many different ways. Thompson presents a view of life in which ongoing evolution is essential and inevitable. Each chapter focuses on one of the major problems in adaptive evolution: How fast is evolution? How strong is natural selection? How do species co-opt the genomes of other species as they adapt? Why does adaptive evolution sometimes lead to more, rather than less, genetic variation within populations? How does the process of adaptation drive the evolution of new species? How does coevolution among species continually reshape the web of life? And, more generally, how are our views of adaptive evolution changing? Relentless Evolution draws on studies of all the major forms of life—from microbes that evolve in microcosms within a few weeks to plants and animals that sometimes evolve in detectable ways within a few decades. It shows evolution not as a slow and stately process, but rather as a continual and sometimes frenetic process that favors yet more evolutionary change.




Grandmother Fish


Book Description

Where did we come from? It's a simple question, but not so simple an answer to explain—especially to young children. Charles Darwin's theory of common descent no longer needs to be a scientific mystery to inquisitive young readers. Meet Grandmother Fish. Told in an engaging call and response text where a child can wiggle like a fish or hoot like an ape and brought to life by vibrant artwork, Grandmother Fish takes children and adults through the history of life on our planet and explains how we are all connected. The book also includes comprehensive backmatter, including: - An elaborate illustration of the evolutionary tree of life - Helpful science notes for parents - How to explain natural selection to a child




Southern History Across the Color Line


Book Description

This work reaches across the colour line to examine how race, gender, class and individual subjectivity shaped the lives of black and white women in the 19th- and 20th-century American South.




Mobile DNA: Finding Treasure in Junk


Book Description

Annotation What we now know about mobile DNA--and the substantial roles it plays in humans, animals, and plants. & bull; & bull;Mobile DNA accounts for more than half of our genome: This book explains the important role it plays in shaping evolutionary change. & bull;A rich, thorough, and accessible introduction for all serious students, practitioners, and researchers in human and medical genetics, molecular biology, or evolutionary biology. & bull;By one of the field's leading researchers, Dr. Haig Kazazian. This book thoroughly reviews our current scientific understanding of the significant role that mobile genetic elements play in the evolution and function of genomes and organisms--from plants and animals to humans. Highly regarded geneticist Haig Kazazian offers an accessible intellectual history of the field's research strategies and concerns, explaining how advances opened up new questions, and how new tools and capabilities have encouraged progress in the field. Kazazian introduces the key strategies and approaches taken in leading laboratories (including his own) to gain greater insight into the large proportion of our genome that derives from mobile genetic elements, including viruses, plasmids, and transposons. He also presents intriguing insights into long-term research strategies that may lead to an even deeper understanding.




Improbable Destinies


Book Description

A major new book overturning our assumptions about how evolution works Earth’s natural history is full of fascinating instances of convergence: phenomena like eyes and wings and tree-climbing lizards that have evolved independently, multiple times. But evolutionary biologists also point out many examples of contingency, cases where the tiniest change—a random mutation or an ancient butterfly sneeze—caused evolution to take a completely different course. What role does each force really play in the constantly changing natural world? Are the plants and animals that exist today, and we humans ourselves, inevitabilities or evolutionary flukes? And what does that say about life on other planets? Jonathan Losos reveals what the latest breakthroughs in evolutionary biology can tell us about one of the greatest ongoing debates in science. He takes us around the globe to meet the researchers who are solving the deepest mysteries of life on Earth through their work in experimental evolutionary science. Losos himself is one of the leaders in this exciting new field, and he illustrates how experiments with guppies, fruit flies, bacteria, foxes, and field mice, along with his own work with anole lizards on Caribbean islands, are rewinding the tape of life to reveal just how rapid and predictable evolution can be. Improbable Destinies will change the way we think and talk about evolution. Losos's insights into natural selection and evolutionary change have far-reaching applications for protecting ecosystems, securing our food supply, and fighting off harmful viruses and bacteria. This compelling narrative offers a new understanding of ourselves and our role in the natural world and the cosmos.




EVOLUTION


Book Description

Every time we work on this Yearbook, we are focused on making at least a small step forward to gradual elaboration of a megaevolutionary paradigm which is designed to create a united scientific field for cross-disciplinary studies. The present volume is the seventh issue of the ‘Evolution’ Yearbook series. Our Yearbooks are designed to present to its readers the widest possible spectrum of subjects and issues: from universal evolutionism to the analysis of particular evolutionary regularities in the development of biological, abiotic, and social systems, culture, cognition, language, etc. The main objective of our Yearbook is the creation of a unified interdisciplinary field of research, within which scientists specializing in different disciplines could work within the framework of unified or similar paradigms, using common terminology and searching for common rules, tendencies and regularities. Global evolution (in connection with the Big History) becomes the main subject of our Yearbook. We strive to arrange each issue in such a way that the line from cosmic evolution to the human future is evident. The title of this issue Evolutionary Aspects: Stars, Primates, and Religion is fully justified. The volume consists of three sections: ‘Megaevolution and Cosmic Evolution’; ‘Biosocial and Social Evolution’; ‘Reviews and Notes’. This Yearbook will be useful both for those who study interdisciplinary macroproblems and for specialists working in focused directions, as well as for those who are interested in evolutionary issues of Cosmology, Biology, History, Anthropology, Economics and other areas of study. More than that, this edition will challenge and excite your vision of your own life and the new discoveries going on around us.




From Darwinian Metaphysics Towards Understanding the Evolution of Evolutionary Mechanisms


Book Description

"Although Charles Darwin predicted that his theory 'would give zest to ... metaphysics, ' even he would be astonished at the variety of paths his theory has in fact taken. This holds with regard to both gene-Darwinism, a purified Darwinian approach biologizing the social sciences, and process- Darwinism found in the disciplines of psychology, philosophy of science, and economics. Although Darwinism is often linked to highly confirmed biological theories, some of its interpretations seem to profit from tautological claims as well, where scientific reputation cloaks ideological usage. This book discusses central tenets of Darwinism historically as well as systematically, for example the history of different Darwinian paradigms, the units-of-selection debate, and the philosophical problem of induction as basis of metaphysical Darwinism. Crucially the book addresses the Darwinian claim that evolution is governed by an immutable and unrelentingly cruel law of natural selection. Paradoxically, Darwins theory is a static, non-evolutionary theory of evolution. The current book sketches the historical background and provides suggestions that may help to replace this approach by the idea of an evolution of evolutionary mechanisms (see Escher's 'Drawing Hands' on the cover). This view even suggests a tendency to overcome the blindness of the knowledge acquisition of primordial Darwinian processes and allows for some freedom from external environments. This book first develops a radically Darwinian approach, then criticises this approach from within. Even Darwinism has a tendency to transcend itself. Although the book addresses several empirical issues, it does not challenge particular findings. Instead it builds on many insights of Darwinism and provides a proposal for interpreting known empirical evidence in a different light. It should help pave the way for further developing an understanding of nature that transcends Darwinian metaphysics"--Publisher's description.




Apes As Ancestors


Book Description

This book goes through the various fossil finds of putative human ancestors and analyzes the evidence of each in detail. The finds are examined in detail to determine which ones can be considered ancestors to modern humans and which claims are spurious.