The Big Questions series is designed to let renowned experts address the 20 most fundamental and frequently asked questions of a major branch of science or philosophy. Each 3,000-word essay simply and concisely examines a question that has eternally perplexed enquiring minds, and provides answers based on the latest research. This ambitious project is a unique distillation of humanity's best ideas. In "The Big Questions: Evolution," Francisco Ayala answers the 20 key questions: What is evolution? Was Darwin right? What is natural selection? What is survival of the fittest? Is evolution a random process? What is a species? What are chromosomes, genes and DNA? How do genes build bodies? What is molecular evolution? How did life begin? What is the tree of life? Am I really a monkey? What does the fossil record tell us? What is the missing link? Is intelligence inherited? Will humans continue to evolve? Can I clone myself? Where does morality come from? Is language a uniquely human attribute? Is Creationism true?

    This iconoclastic, witty, and extremely readable book illuminates the deep background of our place in nature and asks us to think critically about what science is, and what passes for it, in modern society.

    Conventional wisdom may be wrong. In this controversial book, the eminent biologist Paul W. Ewald offers some startling arguments:-Germs appear to be at the root of heart disease, Alzheimer’s, schizophrenia, many forms of cancer, and other chronic diseases.-The greatest threats to our health come not from sensational killers such as Ebola, West Nile virus, and super-virulent strains of influenza, but from agents that are already here causing long-term infections, which eventually lead to debilitation and death. -The medical establishment has largely ignored the evidence that implicates these germs, to the detriment of our public health.-New evolutionary theories are available, which explain how germs function and offer opportunities for controlling these modern plagues — if we are willing to listen to them.Plague Time is an eye-opening exploration of the revolutionary new understanding of disease that may set the course of medical research for the twenty-first century.

    Psychologist Geoffrey Miller offers the most convincing-and radical-explanation for how and why the human mind evolved.Consciousness, morality, creativity, language, and art: these are the traits that make us human. Scientists have traditionally explained these qualities as merely a side effect of surplus brain size, but Miller argues that they were sexual attractors, not side effects. He bases his argument on Darwin's theory of sexual selection, which until now has played second fiddle to Darwin's theory of natural selection, and draws on ideas and research from a wide range of fields, including psychology, economics, history, and pop culture. Witty, powerfully argued, and continually thought-provoking, The Mating Mind is a landmark in our understanding of our own species.

    Cave paintings of the giant beasts hint at the profound role they played in early human culture-our Ice Age ancestors built igloo-shaped huts out of mammoth bones and even feasted on mammoth tongues. Eager to uncover more clues to this mystical prehistoric age, explorers since the time of Peter the Great have scoured Siberia for mammoth remains. Now a new generation of explorers has taken to the tundra. Armed with GPS, ground-penetrating radar, and Soviet-era military helicopters, they seek an elusive prize: a mammoth carcass that will help determine how the creature lived, how it died-and how it might be brought back to life.In this adventure-filled narrative, science writer Richard Stone follows two teams of explorers-one Russian/Japanese, the other a French-led consortium-as they battle bitter cold, high winds, supply shortages, and the deeply rooted superstitions of indigenous peoples who fear the consequences of awakening the "rat beneath the ice." Stone travels from St. Petersburg to the Arctic Circle, from the North Sea to high-tech Japanese laboratories, as he traces the sometimes-surreal quest of these intrepid scientists, whose work could well rewrite our planet's evolutionary history. A riveting tale of high-stakes adventure and scientific hubris, Mammoth is also an intellectual voyage through uncharted moral terrain, as we confront the promise and peril of resurrecting creatures from the deep past.

    By studying social behaviors in animals, such as bonding, the herd instinct, the forming of trusting alliances, expressions of consolation, and conflict resolution, Frans de Waal demonstrates that animals–and humans–are "preprogrammed to reach out." He has found that chimpanzees care for mates that are wounded by leopards, elephants offer "reassuring rumbles" to youngsters in distress, and dolphins support sick companions near the water's surface to prevent them from drowning. From day one humans have innate sensitivities to faces, bodies, and voices; we've been designed to feel for one another.De Waal's theory runs counter to the assumption that humans are inherently selfish, which can be seen in the fields of politics, law, and finance, and which seems to be evidenced by the current greed-driven stock market collapse. But he cites the public's outrage at the U.S. government's lack of empathy in the wake of Hurricane Katrina as a significant shift in perspective–one that helped Barack Obama become elected and ushered in what may well become an Age of Empathy. Through a better understanding of empathy's survival value in evolution, de Waal suggests, we can work together toward a more just society based on a more generous and accurate view of human nature.Written in layman's prose with a wealth of anecdotes, wry humor, and incisive intelligence, The Age of Empathy is essential reading for our embattled times.

    From blurry vision, to crooked teeth, ACLs that tear at alarming rates and spines that seem to spend a lifetime falling apart, it's a curious thing that human beings have beaten the odds as a species. After all, we're the only survivors on our branch of the tree of life. Why is it that human mothers have such a life-endangering experience giving birth? And why are there entire medical specialties for teeth and feet? In this funny, wide-ranging and often surprising book, biologist Alex Bezzerides tells us just where we inherited our adaptable, achy, brilliant bodies in the process of evolution.The book traces the delightfully unexpected answers to these questions and many more:Why do we blink?Why don't our teeth regularly fit in our mouths?Why do women menstruate when so many other mammals don't?Why did humans stand up on two legs in the first place?

    Random genetic mutation, long believed to be the main source of variation, is only a marginal factor. As the authors demonstrate in this book, the more important source of speciation, by far, is the acquisition of new genomes by symbiotic merger. The result of thirty years of delving into a vast, mostly arcane literature, this is the first book to go beyond -- and reveal the severe limitations of -- the "Modern Synthesis" that has dominated evolutionary biology for almost three generations. Lynn Margulis, whom E. O. Wilson called "one of the most successful synthetic thinkers in modern biology," and her co-author Dorion Sagan have written a comprehensive and scientifically supported presentation of a theory that directly challenges the assumptions we hold about the variety of the living world.

    Following in the fashion of Stephen Jay Gould and Peter Medawar, one of the world's leading scientists examines how "pure science" is in fact shaped and guided by social and political needs and assumptions.

    Since then, we have sequenced the full genomes of a number of mankind's primate relatives at a remarkable rate. The genomes of the common chimpanzee(2005) and bonobo (2012), orangutan (2011), gorilla (2012), and macaque monkey (2007) have already been identified, and the determination of other primate genomes is well underway. Researchers are beginning to unravel our full genomic history, comparing it with closely related species to answerage-old questions about how and when we evolved. For the first time, we are finding our own ancestors in our genome and are thereby gleaning new information about our evolutionary past.In Ancestors in Our Genome, molecular anthropologist Eugene E. Harris presents us with a complete and up-to-date account of the evolution of the human genome and our species. Written from the perspective of population genetics, and in simple terms, the book traces human origins back to their sourceamong our earliest human ancestors, and explains many of the most intriguing questions that genome scientists are currently working to answer. For example, what does the high level of discordance among the gene trees of humans and the African great apes tell us about our respective separations fromour common ancestor? Was our separation from the apes fast or slow, and when and why did it occur? Where, when, and how did our modern species evolve? How do we search across genomes to find the genomic underpinnings of our large and complex brains and language abilities? How can we find the genomicbases for life at high altitudes, for lactose tolerance, resistance to disease, and for our different skin pigmentations? How and when did we interbreed with Neandertals and the recently discovered ancient Denisovans of Asia? Harris draws upon extensive experience researching primate evolution inorder to deliver a lively and thorough history of human evolution. Ancestors in Our Genome is the most complete discussion of our current understanding of the human genome available.

      Everything—from biological life to inanimate systems—generates shape and structure and evolves in a sequence of ever-improving designs in order to facilitate flow. River basins, cardiovascular systems, and bolts of lightning are very efficient flow systems to move a current—of water, blood, or electricity. Likewise, the more complex architecture of animals evolve to cover greater distance per unit of useful energy, or increase their flow across the land. Such designs also appear in human organizations, like the hierarchical "flowcharts" or reporting structures in corporations and political bodies. All are governed by the same principle, known as the Constructal Law, and configure and reconfigure themselves over time to flow more efficiently. Written in an easy style that achieves clarity without sacrificing complexity, Design in Nature is a paradigm-shifting book that will fundamentally transform our understanding of the world around us.

    Unlike Origin, this book focuses on human ancestry and offers a concise, nontechnical survey of the state of mid-nineteenth-century knowledge about primate and human paleontology and ethology.Man's Place in Nature concurs with Darwin's assertion of the absence of a physiologic and psychic structural line of demarcation between humans and apes. Huxley ventures further than Darwin, however, by making the first attempt to apply the principles of evolution directly to the human race (an issue that Darwin skirted). Despite Huxley's acknowledgements of the wide gulf represented by the human capacity for rational speech and language, some Victorian readers were scandalized by the application of Darwinian theory to humans and by Huxley's evidence of the fundamental similarities between the human brain and the ape brain.A landmark of scientific progress, this immensely readable book reflects the stylistic gifts that made its author a popular public speaker.

    Line drawings and black-and-white photographs.

    In this classic work Anne Sayre, a journalist and close friend of Franklin, puts the record straight.

    They were hunter-gatherers, consummate foraging experts, but taking the world as they found it. Then a revolution occurred – our ancestors’ interaction with other species changed. They began to tame them. The human population boomed; civilization began.In her new book, Tamed, Alice Roberts uncovers the amazing deep history of ten familiar species with incredible wild pasts: dogs, apples and wheat; cattle; potatoes and chickens; rice, maize, and horses – and, finally, humans. Alice Roberts not only reveals how becoming part of our world changed these animals and plants, but shows how they became our allies, essential to the survival and success of our own species – and to our future.Enlightening, wide-ranging and endlessly fascinating, Tamed is an epic story, encompassing hundreds of thousands of years of history and archaeology alongside cutting-edge genetics and anthropology. Yet it is also a deeply personal journey that will change how we see ourselves and the species on which we have left our mark.