Extended Heredity

How genes are not the only basis of heredity—and what this means for evolution, human life, and disease For much of the twentieth century it was assumed that genes alone mediate the transmission of biological information across generations and provide the raw material for natural selection. In Extended Heredity, leading evolutionary biologists Russell Bonduriansky and Troy Day challenge this premise. Drawing on the latest research, they demonstrate that what happens during our lifetimes--and even our grandparents' and great-grandparents' lifetimes—can influence the features of our descendants. On the basis of these discoveries, Bonduriansky and Day develop an extended concept of heredity that upends ideas about how traits can and cannot be transmitted across generations. By examining the history of the gene-centered view in modern biology and reassessing fundamental tenets of evolutionary theory, Bonduriansky and Day show that nongenetic inheritance—involving epigenetic, environmental, behavioral, and cultural factors—could play an important role in evolution. The discovery of nongenetic inheritance therefore has major implications for key questions in evolutionary biology, as well as human health. Extended Heredity reappraises long-held ideas and opens the door to a new understanding of inheritance and evolution.

Bonduriansky and Day challenge the premise that genes alone mediate the transmission of biological information across generations and provide the raw material for natural selection. They explore the latest research showing that what happens during our lifetimes—and even our parents’ and grandparents’ lifetimes—can influence the features of our descendants. Based on this evidence, Bonduriansky and Day develop an extended concept of heredity that upends ideas about how traits can and cannot be transmitted across generations, opening the door to a new understanding of inheritance, evolution, and even human health. --Adapted from publisher description.

Current knowledge of the genetic, epigenetic, behavioural and symbolic systems of inheritance requires a revision and extension of the mid-twentieth-century, gene-based, 'Modern Synthesis' version of Darwinian evolutionary theory. We present the case for this by first outlining the history that led to the neo-Darwinian view of evolution. In the second section we describe and compare different types of inheritance, and in the third discuss the implications of a broad view of heredity for various aspects of evolutionary theory. We end with an examination of the philosophical and conceptual ramifications of evolutionary thinking that incorporates multiple inheritance systems.

By the best selling author of The Selfish Gene 'This entertaining and thought-provoking book is an excellent illustration of why the study of evolution is in such an exciting ferment these days.' Science 'The Extended Phenotype is a sequel to The Selfish Gene . . . he writes so clearly it could be understood by anyone prepared to make the effort' John Maynard Smith, London Review of Books 'Dawkins is quite incapable of being boring this characteristically brilliant and stimulating book is original and provocative throughout, and immensely enjoyable.' G. A. Parker, Heredity 'The extended phenotype is certainly a big idea and it is pressed hard in dramatic language.' Sydney Brenner, Nature 'Richard Dawkins, our most radical Darwinian thinker, is also our best science writer.' Douglas Adams 'Dawkins is a superb communicator. His books are some of the best books ever written on science.' Megan Tressider, Guardian 'Dawkins is a genius of science popularization.' Mark Ridley, The Times

This book integrates the work of philosophers of science seeking to make sense of genetics with an accessible introduction to the science.

The computational theory of mind, which views the brain as an information processor that operates on cognitive representations, is central to modern cognitive psychology and is the dominant perspective from which brain function is conceptualized and studied. Evolutionary Psychology (EP) is the application of evolutionary theory to understanding human behaviour and cognition. Unlike other core Psychology topic areas (such as Personality, Learning or Developmental Psychology), however, EP is not defined by the subset of psychological phenomena it seeks to describe and understand. It is instead defined by a specific meta-theoretical perspective, from which it seeks to (potentially) explain all psychological phenomena. The central question posed by this volume is whether this over-arching nature provides an opportunity for evolutionary approaches to offer an alternative meta-theoretical perspective to the information processing / representational view of brain function and behavior.

In this incisive study of the biological and cultural origins of the human self, the author challenges readers to re-think ideas about the self and consciousness as being exclusive to humans. In their place, he expounds a metatheoretical approach to the self as a purposeful system of extended cognition common to animal life: the invisible medium maintaining mind, body and environment as an integrated ‘field of being’. Supported by recent research in evolutionary and developmental studies together with related discoveries in animal behaviour and the neurosciences, the author examines the factors that have shaped the evolution of the animal self across widely different species and times, through to the modern, technologically enmeshed human self; the differences between which, he contends, are relations of degree rather than absolute differences. We are, he concludes, instinctive and ‘fuzzy individuals’ clinging to fragile identities in an artificial and volatile world of humanity’s own making, but which we now struggle to control. This book, which restores the self to its fundamental place in identity formation, will be of great interest for students and academics in the fields of social, developmental and environmental psychology, together with readers from other disciplines in the humanities, especially philosophy, cultural theory and architecture.

“Thought-provoking…any scientist interested in genetics will find this an enlightening look at the history of this field.”—Quarterly Review of Biology It was only around 1800 that heredity began to enter debates among physicians, breeders, and naturalists. Soon thereafter, it evolved into one of the most fundamental concepts of biology. Here, Staffan Muller-Wille and Hans-Jorg Rheinberger offer a succinct cultural history of the scientific concept of heredity. They outline the dramatic changes the idea has undergone since the early modern period and describe the political and technological developments that brought about these changes. They begin with an account of premodern theories of generation, showing that these were concerned with the procreation of individuals rather than with hereditary transmission, and reveal that when hereditarian thinking first emerged, it did so in a variety of cultural domains, such as politics and law, medicine, natural history, breeding, and anthropology. The authors then track theories of heredity from the late nineteenth century—when leading biologists considered it in light of growing societal concerns with race and eugenics—through the rise of classical and molecular genetics in the twentieth century, to today, as researchers apply sophisticated information technologies to understand heredity. What we come to see from this exquisite history is why it took such a long time for heredity to become a prominent concept in the life sciences, and why it gained such overwhelming importance in those sciences and the broader culture over the last two centuries.