These great beasts, or “megafauna,” lived on every habitable continent and on many islands. With a handful of exceptions, all are now gone.What caused the disappearance of these prehistoric behemoths? No one event can be pinpointed as a specific cause, but several factors may have played a role. Paleomammalogist Ross D. E. MacPhee explores them all, examining the leading extinction theories, weighing the evidence, and presenting his own conclusions. He shows how theories of human overhunting and catastrophic climate change fail to account for critical features of these extinctions, and how new thinking is needed to elucidate these mysterious losses.Along the way, we learn how time is determined in earth history; how DNA is used to explain the genomics and phylogenetic history of megafauna—and how synthetic biology and genetic engineering may be able to reintroduce these giants of the past. Until then, gorgeous four-color illustrations by Peter Schouten re-create these megabeasts here in vivid detail.

    It features over 900 photos, annotations and descriptions highlighting chief characteristics and distinguishing marks which help you to identify different whale, dolphin or porpoise species quickly.

    Accompanying range maps; overhead flight silhouettes; and sections on bird-watching, accidental species, and endangered birds make the National Audubon Society's Field Guide to North American Birds the most comprehensive available.Note: The Western Edition covers the Rocky Mountain range and all the states to the west of it, while the Eastern Edition generally covers states east of the Rocky Mountains.

    b&w illustrations throughout.

    B&W photos throughout. Full-color insert.

    Doctors James Giffin and Tom Gore address such basic health-care and management issues as the latest medicines and immunizations, wounds, illnesses, parasites, nutrition and supplements, and reproduction. Just inside the covers, the horse owner can easily access the index of Signs and Symptoms, since responding quickly to an emergency can literally mean the life or death of a horse. Anyone who looks after a horse whether owner, trainer or groom can rely on this authoritative book to get them through emergencies and well as routine events. James M. Giffin, M.D., lives in Ridgway, Colorado, and Tom Gore, D.V.M., lives in Osmond, Nebraska. They co-authored Howell s Dog Owner s Home

    Equine Fitness will have your horse looking and feeling his best with a series of fun exercise routines specifically designed to enhance his strength, stamina, and agility. Clear step-by-step instructions and detailed illustrations make the exercises easy to follow, and the book includes a handy set of pocket-sized cards that you can use in the ring. Jec Ballou’s simple conditioning program promises lasting results for healthy horses and satisfied riders.

    Whales: An Illustrated Celebration explores the most interesting and illuminating facts about these marine mammals, from the enormous blue whale (which has a heart the size of a car!) to the Amazon river dolphin (which is pink!). Gorgeously illustrated with full-color art on every page, this giftable guide delves into cetaceans' mysterious evolution (from land to water mammals), their place in mythology, and their ecology, habitats, and behaviors (such as singing, fluking, beaching, bubble feeding, and more). Perfect for nature and animal lovers from eight to eighty, Whales also covers the current state of wild and captive cetaceans worldwide, why we should care, and what we can do to help our beautiful marine mammal friends.

    During every major period in the country's history, bees and beekeepers have represented order and stability in a country without a national religion, political party, or language. Bees in America is an enlightening cultural history of bees and beekeeping in the United States. Tammy Horn, herself a beekeeper, offers a varied social and technological history from the colonial period, wh

    Through dramatic graphics and age-appropriate text, this authoritative volume charts the discovery of all the main types of dinosaurs and reveals the latest details on how these creatures most likely looked, behaved, defended themselves, found food, cared for their young, and interacted. Stunning murals, based on scientific evidence, depict various dinosaurs in their habitats--beautifully complementing the color photographs, paintings, charts, and maps. Some 53 major types of dinosaurs are described, representing a wide range of physical structures, sizes, and lifestyles.The book presents recent discoveries and current scientific thought--including the dinosaur-bird connection, profiles of feathered dinosaurs, and theories on dinosaur extinction. Readers also see how today' s paleontologists obtain evidence, piece together clues, and continue to reconstruct life in prehistoric times.

    This brand new edition of the best-selling field guide from the RSPB is compact, informative and beautifully illustrated, and features 215 of the most common birds found in Britain.

    George and Small, the Caldecott Medal-winning team who created So You Want to Be President? , are back with another spirited and witty look at history-this time focusing on the inventors and inventions who have given us lightbulbs, automobiles, and all the other things that keep the world humming. So You Want to Be an Inventor? features some of the world's best-known inventors-Thomas Edison, Benjamin Franklin, Eli Whitney-as well as lesser-known geniuses like Georges de Mestral (inventor of Velcro), Wilhelm Roentgen (inventor of X rays), and Hedy Lamarr (inventor of a system that became the basis for satellite communication-who knew?). Whether you're a dreamer or a loner, a copycat or a daredevil, this book might just inspire readers to invent something that could change the world!

    In this pocket version of his bestselling Life Without Diabetes, Professor Roy Taylor offers a brilliantly concise explanation of what happens to us when we get type 2 and how we can escape it.Taylor's research has demonstrated that type 2 is caused by just one factor - too much internal fat in the liver and pancreas - and that to reverse it you need to strip this harmful internal fat out with rapid weight loss.In simple, accessible language, Taylor takes you through the three steps of his clinically proven Newcastle weight loss plan and shows how to incorporate the programme into your life.Complete with FAQs and inspirational tips from his trial participants, this is an essential read for anyone who has been given a diagnosis of type 2 diabetes or pre-diabetes and wants to understand their condition and transform their outcomes.

    Geosystems 6/e is written for students, designed to teach the science of physical geography in an interesting, and engaging style Christopherson's approach communicates modern physical geography through its systems organization, currency, student-friendly writing, and an outstanding multimedia graphics program.

    In the process, he takes us on a journey into the wild and the tame, the beautiful and the fragile.Over the course of a full nesting season, Gessner immerses himself in the lives of these majestic birds. He observes their remarkable adaptability, their astonishing fish-catching skills, their housekeeping habits, and, when the chicks are born, both their savage and gentle ways of nurturing. For Gessner, spotting an osprey dive for fish at forty miles an hour becomes a lesson in patience and focus, watching the birds build their nests illustrates the vital task of making a home, and following the chicks' attempts to fly show him the value of letting go. He discovers the rewards of slowing down and the discipline of waiting and watching. And he witnesses an extraordinary event: the survival of ten young ospreys, the most his Cape Cod neighborhood has seen in more than half a century.Return of the Osprey is a story of a remarkable recovery, a celebration of place, and a thoughtful meditation on finding one's way in the world.