Fully grown they can measure 10 feet and weigh close to 2,000 pounds, but at birth they are just 20 ounces. Creatures that may wander thousands of miles over the course of a year, they begin life in a snowdrift.Human encounters with these legendary beasts are cause for both excitement and apprehension. Tales throughout history describe the ferocity of polar bear attacks on humans; but human hunting of polar bears has exacted a far larger toll, obliging Arctic nations to try to protect their region’s iconic species before it’s too late.Now, however, another threat to the polar bears’ survival has emerged, one that is steadily removing sea ice and the life it supports. Without this habitat, polar bears cannot exist. The Great White Bear celebrates the story of this unique species. Through a blend of history, both natural and human, through myth and reality and observations both personal and scientific, Kieran Mulvaney masterfully provides a context for readers to consider the polar bear, its history, its life, and its uncertain fate.

    Includes a poster of Theodore Gray's iconic photographic periodic table of the elements! Based on seven years of research and photography by Theodore Gray and Nick Mann, The Elements presents the most complete and visually arresting representation available to the naked eye of every atom in the universe. Organized sequentially by atomic number, every element is represented by a big beautiful photograph that most closely represents it in its purest form. Several additional photographs show each element in slightly altered forms or as used in various practical ways. Also included are fascinating stories of the elements, as well as data on the properties of each, including atomic number, atomic symbol, atomic weight, density, atomic radius, as well as scales for electron filling order, state of matter, and an atomic emission spectrum. This of solid science and stunning artistic photographs is the perfect gift book for every sentient creature in the universe.

    A total eclipse of the Sun will be visible from within a narrow corridor that traverses the United States. The path of the Moon's umbral shadow will begin in the northern Pacific and cross the USA from west to east from Oregon to South Carolina. The Moon's penumbral shadow will produce a partial eclipse visible from most of North America. In fact, the 2017 full eclipse is such an important sky event that sky watchers in Europe are already planning trips to view it. 2017 Guide to the Night Sky provides all of the information needed to view this exciting eclipse and track its path. The time zones and transit of the eclipse will be noted inside the book's jacket for quick and easy reference.The night sky makes for exciting viewing any time of the year, and 2017 Guide to the Night Sky is the ideal guide to help amateur astronomers find their way for the entire 12 months. With monthly charts and other diagrams set for a latitude of 40 degrees North, it shows how the visible stars change from month to month and includes the many sky events that occur throughout the year. It is highly practical for beginning sky gazers because the objects and events may be observed with the naked eye, or nothing more complicated than a pair of binoculars.The month-by-month guides include sky activity charts and moon calendars; meteors (with dates of showers, including hourly rate of radiants); the Planets; ecliptic charts; diagrams of interesting events; plus sky and constellation maps throughout.An appendix includes a full glossary; the Greek Alphabet; the constellation genitives, abbreviations and English names; a table of common asterisms; further information; recommended astronomy journals, societies, institutions and organizations; software, and internet sources.Especially useful for beginning sky watchers, this guide will be fully updated to 2017. Its small and light format makes it the ideal portable reference for backyard astronomers.

    After his death, the contents of his studio, including thousands of glass negatives, were sold off for five dollars. For years the fragile negatives sat forgotten and deteriorating in cardboard boxes in an open carport. How did it happen, then, that the most implausible of events took place? That Disfarmer’s haunting portraits were retrieved from oblivion, that today they sell for upwards of $12,000 each at posh New York art galleries; his photographs proclaimed works of art by prestigious critics and journals and exhibited around the world? The story of Disfarmer’s rise to fame is a colorful, improbable, and ultimately fascinating one that involves an unlikely assortment of individuals. Would any of this have happened if a young New York photographer hadn't been so in love with a pretty model that he was willing to give up his career for her; if a preacher’s son from Arkansas hadn't spent 30 years in the Army Corps of Engineers mapping the U.S. from an airplane; if a magazine editor hadn't felt a strange and powerful connection to the work? The cast of characters includes these, plus a restless and wealthy young Chicago aristocrat and even a grandson of FDR. It’s a compelling story which reveals how these diverse people were part of a chain of events whose far-reaching consequences none of them could have foreseen, least of all the strange and reclusive genius of Heber Springs. Until now, the whole story has not been told.

    The pictorial models are useful in understanding relationships. The models also abound in descriptive detail.

    Since that time he has answered thousands of questions about birds, both at his store and while walking down the aisles of the supermarket. The questions have ranged from inquiries about individual species ("Are flamingos really real?") to what and when to feed birds ("Should I bring in my feeders for the summer?") to the down-and-dirty specifics of backyard birding ("Why are the birds dropping poop in my pool?"). Answering the questions has been easy; keeping a straight face has been hard.Why Don't Woodpeckers Get Headaches? is the solution for the beginning birder who already has a book that explains the slight variation between Common Ground-Doves and Ruddy Ground-Doves but who is really much more interested in why birds sing at 4:30 A.M. instead of 7:00 A.M., or whether it's okay to feed bread to birds, or how birds rediscover your feeders so quickly when you've just filled them after a long vacation. Or, for that matter, whether flamingos are really real.

    We all have one, but most of us will never see one. The heart surgeon now has that privilege but, for centuries, the heart was out of reach even for surgeons. So when a surgeon nowadays opens up a ribcage and mends a heart, it remains something of a miracle, even if, to some, it is merely plumbing. As with plumbers, the quality of surgeons’ work varies. As with plumbers, surgeons’ opinion of their own prowess and their own attitude to risk are not always reliable. Measurement is key. We’ve had a century of effective evidence-based medicine. We’ve had barely a decade of thorough monitoring of clinical outcomes. Thanks to the ground-breaking risk modelling of pioneering surgeons like Samer Nashef, we at last know how to judge whether an operation is in a patient’s best interest, which hospital and surgeon would be best for that operation, when it might best be performed and what the exact level of risk is. We have at last made what is important in surgery measurable. But how should surgeons, and their patients, use these newfound insights? Ever since his days as a medical student, Samer Nashef has challenged the medical profession to be more open and more accurate about the success of surgical procedures, for the sake of the patients. In The Naked Surgeon, he unclothes his own profession to demonstrate to his reader (and prospective patient) many revelations, such as the paradox at the heart of the cardiac surgeon’s craft: the more an operation is likely to kill you, the better it is for you. And he does so with absolute clarity, fluency and not a little wit.

    Denise Herzing began her research with a pod of spotted dolphins in the 1980s. Now, almost three decades later, she has forged strong ties with many of these individuals, has witnessed and recorded them feeding, playing, fighting, mating, giving birth and communicating. Dolphin Diaries is an account of Herzing’s research and her surprising findings on wild dolphin behavior, interaction, and communication. Readers will be drawn into the highs and lows—the births and deaths, the discovery of unique and personalized behaviors, the threats dolphins face from environmental changes, and the many funny and wonderful encounters Denise painstakingly documented over many years. This is the perfect book for anyone who loves these incredibly versatile and intelligent creatures and wants to find out more than the dolphin show at the zoo can offer. Herzing is a true pioneer in her field and deserves a place in the pantheon of naturalists and scientists next to Dian Fossey and Jane Goodall.

    Bees are crucial to the reproduction and diversity of flowering plants, and the economic contributions of these irreplaceable insects measure in the tens of billions of dollars each year. Yet bees are dying at an alarming rate, threatening food supplies and ecosystems around the world. In this richly illustrated natural history of the bee, Noah Wilson-Rich and his team of bee experts provide a window into the vitally important role that bees play in the life of our planet.Earth is home to more than 20,000 bee species, from fluorescent-colored orchid bees and sweat bees to flower-nesting squash bees and leaf-cutter bees. This book takes an incomparable look at this astounding diversity, blending an engaging narrative with practical, hands-on discussions of such topics as beekeeping and bee health. It explores our relationship with the bee over evolutionary time, delving into how it came to be, where it stands today, and what the future holds for humanity and bees alike.Provides an accessible, illustrated look at the human-bee relationship over timeFeatures a section on beekeeping and handy go-to guides to the identification, prevention, and treatment of honey bee diseasesCovers bee evolution, ecology, genetics, and physiologyIncludes a directory of notable bee speciesPresents a holistic approach to bee health, including organic and integrated pest management techniquesShows what you can do to help bee populations

    An attractive and comprehensive guidebook, this work has been completely revised and updated by the author. The reader will find an easy-to-use text which details the natural history of the plants and animals found in the Galápagos Islands. Management and conservation of the Galápagos National Park is discussed, and visitor information and notes about the various tourist sites are given. An index and checklist of plants and animals with page references and a glossary of technical terms are provided. New photographs have been added.

    Gorongosa National Park in Mozambique was nearly destroyed in a brutal civil war, then was reborn and is now evolving back to its original state. Edward O. Wilson’s personal, luminous description of the wonders of Gorongosa is beautifully complemented by Piotr Naskrecki’s extraordinary photographs of the park’s exquisite natural beauty. A bonus DVD of Academy Award–winning director Jessica Yu’s documentary, The Guide, is also included with the book.Wilson takes readers to the summit of Mount Gorongosa, sacred to the local people and the park’s vital watershed. From the forests of the mountain he brings us to the deep gorges on the edge of the Rift Valley, previously unexplored by biologists, to search for new species and assess their ancient origins. He describes amazing animal encounters from huge colonies of agricultural termites to spe­cialized raider ants that feed on them to giant spi­ders, a battle between an eagle and a black mamba, “conversations” with traumatized elephants that survived the slaughter of the park’s large animals, and more. He pleads for Gorongosa—and other wild places—to be allowed to exist and evolve in its time­less way uninterrupted into the future.As he examines the near destruction and rebirth of Gorongosa, Wilson analyzes the balance of nature, which, he observes, teeters on a razor’s edge. Loss of even a single species can have serious ramifications throughout an ecosystem, and yet we are carelessly destroying complex biodiverse ecosystems with unknown consequences. The wildlands in which these ecosystems flourish gave birth to humanity, and it is this natural world, still evolving, that may outlast us and become our leg­acy, our window on eternity.

    As she grows into adulthood, only a few of her eggs mature, are released into the oviduct, and are fertilized by sperm stored from copulation that took place days or weeks earlier. Within a matter of hours, the fragile yolk is surrounded by albumen and the whole is gradually encased within a turquoise jewel of a shell. Soon afterward the fully formed egg is expelled onto a bare rocky ledge, where it will be incubated for four weeks before another chick emerges and the life cycle begins again. The Most Perfect Thing is about how eggs in general are made, fertilized, developed, and hatched. The eggs of most birds spend just 24 hours in the oviduct; however, that journey takes 48 hours in cuckoos, which surreptitiously lay their eggs in the nests of other birds. From the earliest times, the study of birds' ovaries and ova (eggs) played a vital role in the quest to unravel the mysteries of fertilization and embryo development in humans. Birkhead uses birds' eggs as wondrous portals into natural history, enlivened by the stories of naturalists and scientists, including Birkhead and his students, whose discoveries have advanced current scientific knowledge of reproduction.

    With artwork from Katie Scott of Animalium fame, Botanicum gives readers the experience of a fascinating exhibition from the pages of a beautiful book. From perennials to bulbs to tropical exotica, Botanicum is a wonderful feast of botanical knowledge complete with superb cross sections of how plants work.

    Our species emerged out of the depths of time into a world already populated by these great carnivores. Before we mastered iron and later developed firearms, we had few defences against bears--only watchful caution and elaborate ceremonies and sacrifices to ward off fear.Where human populations grow, bears have traditionally dwindled or disappeared. But when we return to the wild, to places where bears still survive, all our primeval fears awaken again. The risk of an automobile accident on the way to bear country far outstrips the risk of a close-range encounter with a bear, but it's the bear that worries us as we hurtle down the pavement at a hundred kilometres an hour.In this timely and sensitive book, Kevin Van Tighem calls on decades of experience, knowledge and understanding in order to enlighten readers about our relationship with and attitude toward bears. Along the way we are confronted with the realities confronting these great animals as a result of our ever-expanding human population and their ever-shrinking natural habitat. Through historical research, field observation, practical advice, personal anecdotes and an array of stunning photos, Van Tighem has written a comprehensive book that is meant to demystify bears in order to promote a deeper understanding of these powerful yet vulnerable creatures.

    Eliot Porter's photographs of the natural world, spanning thirty-five years and five continents -- from an Antarctic ice floe to an American desert to an Icelandic lava field -- reveal in mesmerizing ways what scientists are beginning to see for themselves: the patterns, relations, and interactions present in nature's disorder and wildness. This is the perfect marriage of image and text -- brilliant full-color photographs by the preeminent nature photographer of his generation together with an illuminating essay by the widely praised author of Chaos.