In the mid-1970s, scientists began using DNA sequences to reexamine the history of all life. Perhaps the most startling discovery to come out of this new field—the study of life’s diversity and relatedness at the molecular level—is horizontal gene transfer (HGT), or the movement of genes across species lines. It turns out that HGT has been widespread and important. For instance, we now know that roughly eight percent of the human genome arrived not through traditional inheritance from directly ancestral forms, but sideways by viral infection—a type of HGT.David Quammen chronicles these discoveries through the lives of the researchers who made them—such as Carl Woese, the most important little-known biologist of the twentieth century; Lynn Margulis, the notorious maverick whose wild ideas about “mosaic” creatures proved to be true; and Tsutomu Wantanabe, who discovered that the scourge of antibiotic-resistant bacteria is a direct result of horizontal gene transfer, bringing the deep study of genome histories to bear on a global crisis in public health.

    The roots of a tree indicate the sun’s direction; the Big Dipper tells the time; a passing butterfly hints at the weather; a sand dune reveals prevailing wind; the scent of cinnamon suggests altitude; a budding flower points south. To help you understand nature as he does, Gooley shares more than 850 tips for forecasting, tracking, and more, gathered from decades spent walking the landscape around his home and around the world. Whether you’re walking in the country or city, along a coastline, or by night, this is the ultimate resource on what the land, sun, moon, stars, plants, animals, and clouds can reveal—if you only know how to look!

    The text is updated to include new chapters on current ecological topics (metapopulations and conservation ecology); new part introductions to connect the subfields of ecology; and new in-text features to encourage students to interpret the ecological data, research, and models used throughout the text. Abundant, accessible examples illustrate and clarify the text's emphasis on understanding ecological patterns within an evolutionary framework. Additionally, the text employs new study questions requiring students to make connections and apply their knowledge. The expanded companion website includes GRAPHit!, MODELit!, and QUANTIFYit!, new quantitative exercises to help students further master and apply math skills.

    Today, buffeted by one food fad after another, America is suffering from what can only be described as a national eating disorder. The omnivore's dilemma has returned with a vengeance, as the cornucopia of the modern American supermarket and fast-food outlet confronts us with a bewildering and treacherous food landscape. What's at stake in our eating choices is not only our own and our children's health, but the health of the environment that sustains life on earth.The Omnivore's Dilemma is a groundbreaking book in which one of America's most fascinating, original, and elegant writers turns his own omnivorous mind to the seemingly straightforward question of what we should have for dinner. The question has confronted us since man discovered fire, but, according to Michael Pollan, the bestselling author of The Botany of Desire, how we answer it today, ath the dawn of the twenty-first century, may well determine our very survival as a species. Should we eat a fast-food hamburger? Something organic? Or perhaps something we hunt, gather or grow ourselves?To find out, Pollan follows each of the food chains that sustain us—industrial food, organic or alternative food, and food we forage ourselves—from the source to a final meal, and in the process develops a definitive account of the American way of eating. His absorbing narrative takes us from Iowa cornfields to food laboratories, from feedlots and fast-food restaurants to organic farms and hunting grounds, always emphasizing our dynamic coevolutionary relationship with the handful of plant and animal species we depend on. Each time Pollan sits down to a meal, he deploys his unique blend of personal and investigative journalism to trace the origins of everything consumed, revealing what we unwittingly ingest and explaining how our taste for particular foods and flavors reflects our evolutionary inheritance.The surprising answers Pollan offers to the simple question posed by this book have profound political, economic, psychological, and even mortal implications for all of us. Ultimately, this is a book as much about visionary solutions as it is about problems, and Pollan contends that, when it comes to food, doing the right thing often turns out to be the tastiest thing an eater can do. Beautifully written and thrillingly argued, The Omnivore's Dilemma promises to change the way we think about the politics and pleasure of eating. For anyone who reads it, dinner will never again look, or taste, quite the same.

    In the great halls of science, dogma holds that Darwin's theory of natural selection explains every branch on the tree of life: which species thrive, which wither away to extinction, and what features each evolves. But can adaptation by natural selection really account for everything we see in nature? Yale University ornithologist Richard Prum--reviving Darwin's own views--thinks not. Deep in tropical jungles around the world are birds with a dizzying array of appearances and mating displays: Club-winged Manakins who sing with their wings, Great Argus Pheasants who dazzle prospective mates with a four-foot-wide cone of feathers covered in golden 3D spheres, Red-capped Manakins who moonwalk. In thirty years of fieldwork, Prum has seen numerous display traits that seem disconnected from, if not outright contrary to, selection for individual survival. To explain this, he dusts off Darwin's long-neglected theory of sexual selection in which the act of choosing a mate for purely aesthetic reasons--for the mere pleasure of it--is an independent engine of evolutionary change. Mate choice can drive ornamental traits from the constraints of adaptive evolution, allowing them to grow ever more elaborate. It also sets the stakes for sexual conflict, in which the sexual autonomy of the female evolves in response to male sexual control. Most crucially, this framework provides important insights into the evolution of human sexuality, particularly the ways in which female preferences have changed male bodies, and even maleness itself, through evolutionary time. The Evolution of Beauty presents a unique scientific vision for how nature's splendor contributes to a more complete understanding of evolution and of ourselves.

    In its structure and content, the Anthology is intended to complement the Companion to Bioethics, edited by the same scholars. The Anthology is independent of any particular approach to bioethics. Can be used as a source book to complement the Companion to Bioethics. Probes more deeply than the standard anthologies into the foundations of bioethics. More global in approach than competition.

    In exquisite prose, John Lewis-Stempel records the passage of the seasons from cowslips in spring to the hay-cutting of summer and grazing in autumn, and includes the biographies of the animals that inhabit the grass and the soil beneath: the badger clan, the fox family, the rabbit warren, the skylark brood and the curlew pair, among others. Their births, lives, and deaths are stories that thread through the book from first page to last.In Meadowland Lewis-Stempel does for meadows what Roger Deakin did for woodland and rivers in his bestselling books Wildwood and Waterlog.

    The stewards of Earth, these organisms transformed the chemistry of our planet to make it habitable for plants, animals, and us. Life's Engines takes readers deep into the microscopic world to explore how these marvelous creatures made life on Earth possible--and how human life today would cease to exist without them.Paul Falkowski looks "under the hood" of microbes to find the engines of life, the actual working parts that do the biochemical heavy lifting for every living organism on Earth. With insight and humor, he explains how these miniature engines are built--and how they have been appropriated by and assembled like Lego sets within every creature that walks, swims, or flies. Falkowski shows how evolution works to maintain this core machinery of life, and how we and other animals are veritable conglomerations of microbes.A vibrantly entertaining book about the microbes that support our very existence, Life's Engines will inspire wonder about these elegantly complex nanomachines that have driven life since its origin. It also issues a timely warning about the dangers of tinkering with that machinery to make it more "efficient" at meeting the ever-growing demands of humans in the coming century.

    Drawing deep from personal experience, cutting-edge science, and colorful history, he spins captivating stories about the birds in our midst and reveals the startlingly intimate coexistence of birds and humans.

    But scientists in the late 20th century have found patterns in things formerly thought to be chaotic; their theories help explain the unstable irregular yet highly structured features of everyday experience. It now seems likely that randomness and chaos play an essential role in the evolution of the living world-and of intelligence itself. Script by Dr. Roger White.

    In How to Clone a Mammoth, Beth Shapiro, evolutionary biologist and pioneer in "ancient DNA" research, walks readers through the astonishing and controversial process of de-extinction. From deciding which species should be restored, to sequencing their genomes, to anticipating how revived populations might be overseen in the wild, Shapiro vividly explores the extraordinary cutting-edge science that is being used--today--to resurrect the past. Journeying to far-flung Siberian locales in search of ice age bones and delving into her own research--as well as those of fellow experts such as Svante Paabo, George Church, and Craig Venter--Shapiro considers de-extinction's practical benefits and ethical challenges. Would de-extinction change the way we live? Is this really cloning? What are the costs and risks? And what is the ultimate goal?Using DNA collected from remains as a genetic blueprint, scientists aim to engineer extinct traits--traits that evolved by natural selection over thousands of years--into living organisms. But rather than viewing de-extinction as a way to restore one particular species, Shapiro argues that the overarching goal should be the revitalization and stabilization of contemporary ecosystems. For example, elephants with genes modified to express mammoth traits could expand into the Arctic, re-establishing lost productivity to the tundra ecosystem.Looking at the very real and compelling science behind an idea once seen as science fiction, How to Clone a Mammoth demonstrates how de-extinction will redefine conservation's future.

    But no matter where she was transplanted--no matter how awkward the fit or forbidding the landscape--she was able to turn to our world's fierce and funny creatures for guidance."What the peacock can do," she tells us, "is remind you of a home you will run away from and run back to all your life." The axolotl teaches us to smile, even in the face of unkindness; the touch-me-not plant shows us how to shake off unwanted advances; the narwhal demonstrates how to survive in hostile environments. Even in the strange and the unlovely, Nezhukumatathil finds beauty and kinship. For it is this way with wonder: it requires that we are curious enough to look past the distractions in order to fully appreciate the world's gifts.Warm, lyrical, and gorgeously illustrated by Fumi Nakamura, World of Wonders is a book of sustenance and joy.

    From the #1 bestselling author of The Hot Zone comes an amazing account of scientific and spiritual passion for the tallest trees in the world, the startling biosystem of Rthe canopy, S and those who are committed to the preservation of this astonishing and largely unknown world.

    The set includes thirty-one 30-minute MCAT practice exams with answers and explanations and more than 1,600 MCAT questions.

    A Papua New Guinean elder shoves off in his hand-carved canoe, ready to summon a shark with ancient magic. A scientist finds a rare shark in Indonesia and forges a deal with villagers so it and other species can survive.In this eye-opening adventure that spans the globe, Juliet Eilperin investigates the fascinating ways different individuals and cultures relate to the ocean’s top predator. Along the way, she reminds us why, after millions of years, sharks remain among nature’s most awe-inspiring creatures.From Belize to South Africa, from Shanghai to Bimini, we see that sharks are still the object of an obsession that may eventually lead to their extinction. This is why movie stars and professional athletes go shark hunting in Miami and why shark’s fin soup remains a coveted status symbol in China. Yet we also see glimpses of how people and sharks can exist alongside one another: surfers tolerating their presence off Cape Town and ecotourists swimming with sharks that locals in the Yucatán no longer have to hunt.With a reporter’s instinct for a good story and a scientist’s curiosity, Eilperin offers us an up-close understanding of these extraordinary, mysterious creatures in the most entertaining and illuminating shark encounter you’re likely to find outside a steel cage.