Are We Slaves To Our Genes

Genetic differences can influence differences in our human behaviours, but only occasionally undermine the reality of our free will.

How does genetic variation impact on behavioural differences and how does this relate to free will and personal identity? Denis Alexander examines these questions.

Science need not be dull and bogged down by jargon, as Richard Dawkins proves in this entertaining look at evolution. The themes he takes up are the concepts of altruistic and selfish behaviour; the genetical definition of selfish interest; the evolution of aggressive behaviour; kinshiptheory; sex ratio theory; reciprocal altruism; deceit; and the natural selection of sex differences. 'Should be read, can be read by almost anyone. It describes with great skill a new face of the theory of evolution.' W.D. Hamilton, Science

From acclaimed author and researcher Dr. Joy DeGruy comes this fascinating book that explores the psychological and emotional impact on African Americans after enduring the horrific Middle Passage, over 300 years of slavery, followed by continued discrimination. From the beginning of American chattel slavery in the 1500’s, until the ratification of the Thirteenth Amendment in 1865, Africans were hunted like animals, captured, sold, tortured, and raped. They experienced the worst kind of physical, emotional, psychological, and spiritual abuse. Given such history, Dr. Joy DeGruy asked the question, “Isn’t it likely those enslaved were severely traumatized? Furthermore, did the trauma and the effects of such horrific abuse end with the abolition of slavery?” Emancipation was followed by another hundred years of institutionalized subjugation through the enactment of Black Codes and Jim Crow laws, peonage and convict leasing, and domestic terrorism and lynching. Today the violations continue, and when combined with the crimes of the past, they result in further unmeasured injury. What do repeated traumas visited upon generation after generation of a people produce? What are the impacts of the ordeals associated with chattel slavery, and with the institutions that followed, on African Americans today? Dr. DeGruy answers these questions and more as she encourages African Americans to view their attitudes, assumptions, and emotions through the lens of history. By doing so, she argues they will gain a greater understanding of the impact centuries of slavery and oppression has had on African Americans. Post Traumatic Slave Syndrome is an important read for all Americans, as the institution of slavery has had an impact on every race and culture. “A masterwork. [DeGruy’s] deep understanding, critical analysis, and determination to illuminate core truths are essential to addressing the long-lived devastation of slavery. Her book is the balm we need to heal ourselves and our relationships. It is a gift of wholeness.”—Susan Taylor, former Editorial Director of Essence magazine

This book formulates a relativistic theory of biology, challenging the common gene-centred view of organisms.

2019 PEN/E.O. Wilson Literary Science Writing Award Finalist "Science book of the year"—The Guardian One of New York Times 100 Notable Books for 2018 One of Publishers Weekly's Top Ten Books of 2018 One of Kirkus's Best Books of 2018 One of Mental Floss's Best Books of 2018 One of Science Friday's Best Science Books of 2018 “Extraordinary”—New York Times Book Review "Magisterial"—The Atlantic "Engrossing"—Wired "Leading contender as the most outstanding nonfiction work of the year"—Minneapolis Star-Tribune Celebrated New York Times columnist and science writer Carl Zimmer presents a profoundly original perspective on what we pass along from generation to generation. Charles Darwin played a crucial part in turning heredity into a scientific question, and yet he failed spectacularly to answer it. The birth of genetics in the early 1900s seemed to do precisely that. Gradually, people translated their old notions about heredity into a language of genes. As the technology for studying genes became cheaper, millions of people ordered genetic tests to link themselves to missing parents, to distant ancestors, to ethnic identities... But, Zimmer writes, “Each of us carries an amalgam of fragments of DNA, stitched together from some of our many ancestors. Each piece has its own ancestry, traveling a different path back through human history. A particular fragment may sometimes be cause for worry, but most of our DNA influences who we are—our appearance, our height, our penchants—in inconceivably subtle ways.” Heredity isn’t just about genes that pass from parent to child. Heredity continues within our own bodies, as a single cell gives rise to trillions of cells that make up our bodies. We say we inherit genes from our ancestors—using a word that once referred to kingdoms and estates—but we inherit other things that matter as much or more to our lives, from microbes to technologies we use to make life more comfortable. We need a new definition of what heredity is and, through Carl Zimmer’s lucid exposition and storytelling, this resounding tour de force delivers it. Weaving historical and current scientific research, his own experience with his two daughters, and the kind of original reporting expected of one of the world’s best science journalists, Zimmer ultimately unpacks urgent bioethical quandaries arising from new biomedical technologies, but also long-standing presumptions about who we really are and what we can pass on to future generations.

Drawing on startling new evidence from the mapping of the genome, an explosive new account of the genetic basis of race and its role in the human story Fewer ideas have been more toxic or harmful than the idea of the biological reality of race, and with it the idea that humans of different races are biologically different from one another. For this understandable reason, the idea has been banished from polite academic conversation. Arguing that race is more than just a social construct can get a scholar run out of town, or at least off campus, on a rail. Human evolution, the consensus view insists, ended in prehistory. Inconveniently, as Nicholas Wade argues in A Troublesome Inheritance, the consensus view cannot be right. And in fact, we know that populations have changed in the past few thousand years—to be lactose tolerant, for example, and to survive at high altitudes. Race is not a bright-line distinction; by definition it means that the more human populations are kept apart, the more they evolve their own distinct traits under the selective pressure known as Darwinian evolution. For many thousands of years, most human populations stayed where they were and grew distinct, not just in outward appearance but in deeper senses as well. Wade, the longtime journalist covering genetic advances for The New York Times, draws widely on the work of scientists who have made crucial breakthroughs in establishing the reality of recent human evolution. The most provocative claims in this book involve the genetic basis of human social habits. What we might call middle-class social traits—thrift, docility, nonviolence—have been slowly but surely inculcated genetically within agrarian societies, Wade argues. These “values” obviously had a strong cultural component, but Wade points to evidence that agrarian societies evolved away from hunter-gatherer societies in some crucial respects. Also controversial are his findings regarding the genetic basis of traits we associate with intelligence, such as literacy and numeracy, in certain ethnic populations, including the Chinese and Ashkenazi Jews. Wade believes deeply in the fundamental equality of all human peoples. He also believes that science is best served by pursuing the truth without fear, and if his mission to arrive at a coherent summa of what the new genetic science does and does not tell us about race and human history leads straight into a minefield, then so be it. This will not be the last word on the subject, but it will begin a powerful and overdue conversation.