The book uses the theme of evolution to develop a broad-scale view of animal diversity--students focus not only the organisms themselves, but also the processes that produce evolutionary diversity. The book is unique in its comprehensive survey of zoological diversity and its emphasis on evolutionary, systematic and ecological principles, all in one package.

    Across North America, tens of thousands of people gather every spring and fall at more than one thousand known hawk migration sites--from New Jersey's Cape May to California's Golden Gate. Yet, as many discover, a standard field guide, with its emphasis on plumage, is often of little help in identifying those raptors soaring, gliding, or flapping far, far away.Hawks from Every Angle takes hawk identification to new heights. It offers a fresh approach that literally looks at the birds from every angle, compares and contrasts deceptively similar species, and provides the pictures (and words) needed for identification in the field. Jerry Liguori pinpoints innovative, field-tested identification traits for each species from the various angles that they are seen.Featuring 339 striking color photos on 68 color plates and 32 black & white photos, Hawks from Every Angle is unique in presenting a host of meticulously crafted pictures for each of the 19 species it covers in detail--the species most common to migration sites throughout the United States and Canada. All aspects of raptor identification are discussed, including plumage, shape, and flight style traits.For all birders who follow hawk migration and have found themselves wondering if the raptor in the sky matches the one in the guide, Hawks from Every Angle--distilling an expert's years of experience for the first time into a comprehensive array of truly useful photos and other pointers for each species--is quite simply a must.Key Features? The essential new approach to identifying hawks in flight Innovative, accurate, and field-tested identification traits for each species 339 color photos on 68 color plates, 32 black & white photos Compares and contrasts species easily confused with one another, and provides the pictures (and words) needed for identification in the field Covers in detail 19 species common to migration sites throughout the North America Discusses light conditions, how molt can alter the shape of a bird, aberrant plumages, and migration seasons and sites User-friendly format

    Wood and Bruce F. Wollenberg presented their comprehensive introduction to the engineering and economic factors involved in operating and controlling power generation systems in electric utilities, the electric power industry has undergone unprecedented change. Deregulation, open access to transmission systems, and the birth of independent power producers have altered the structure of the industry, while technological advances have created a host of new opportunities and challenges. In Power Generation, Operation, and Control, Second Edition, Wood and Wollenberg bring professionals and students alike up to date on the nuts and bolts of the field. Continuing in the tradition of the first edition, they offer a practical, hands-on guide to theoretical developments and to the application of advanced operations research methods to realistic electric power engineering problems. This one-of-a-kind text also addresses the interaction between human and economic factors to prepare readers to make real-world decisions that go beyond the limits of mere technical calculations. The Second Edition features vital new material, including: * A computer disk developed by the authors to help readers solve complicated problems * Examination of Optimal Power Flow (OPF) * Treatment of unit commitment expanded to incorporate the Lagrange relaxation technique * Introduction to the use of bounding techniques and other contingency selection methods * Applications suited to the new, deregulated systems as well as to the traditional, vertically organized utilities company Wood and Wollenberg draw upon nearly 30 years of classroom testing to provide valuable data on operations research, state estimation methods, fuel scheduling techniques, and more. Designed for clarity and ease of use, this invaluable reference prepares industry professionals and students to meet the future challenges of power generation, operation, and control.

    This Teacher's Resource CD-ROM for Stage 9 gives suggestions for how to introduce concepts in the classroom and how to deal with common misconceptions. A large collection of worksheets offer more ideas for practical and other activities. Answers to all questions in the Coursebook and Workbook, as well as guidance and safety notes for all practical activities, are also included. Integrated review of topics from Stages 7 and 8 as well as full coverage of the Stage 9 content provides preparation for the Cambridge Checkpoint Science test and a solid foundation for progression into the Cambridge IGCSE Sciences.

    With reassuring, down-to-earth advice, Tracy Hogg's practical sleep programme will help you overcome your baby's sleep problems and works with infants from as young as a day old.

    We all know Santa Claus: fat, jolly, omniscient, swift. Lives in a nice home in the Arctic, with the missus and a pack of elves.Well, forget what you know. Santa Claus is from Greenpoint, Brooklyn, as it turns out, and he's not as fat as he used to be. Here's something else you didn't know: he's been dabbling in some futuristic technology, and has found myriad ways to make his job possible. How can Santa know who's been naughty and nice? Simple: implant listening devices into your ornaments. How can he make it to every house Christmas Eve? That's nothing a little cloning and some wormholes can't solve. And he has plenty of other tactics: quantum entanglement, organ replacement, drug-induced hibernation, and unmanned aerial vehicles, to name just a few.In this fantastically illustrated, affectionate, and hilarious book, Gregory Mone uses science and technology to overturn the assumption that Santa can't be real. Drawing on the work of accomplished scientists and researchers, Mone gives us a whole new portrait of this remarkable man and the miracles he makes happen every year. With imaginative artwork and an eye-catching package, this book makes an outstanding Christmas gift for just about anyone.

    Garden expert Jessica Walliser also offers strategies for dealing with the new bugs in town, those worrisome strangers that are starting to show up as a result of climate change. Thirty-six bugs, presented in full color on laminated stock, with concealed wire binding. Sturdy enough to take into the garden for easy reference.

    Longevity is a priority when enjoying our dogs, and you will see in this educational ebook there are many tips, hints and dog training activities that can help your dog stay young! Susan Garrett's has owned 6 dogs that have lived well into their teenaged years. Recently "Buzz" Susan's oldest Border Collie helped ring in his 18th New Years Eve celebration. Anti-Aging Tips for Dogs is a collection of articles written to help dog owners 1) keep your young dogs healthy as they age and 2)To keep an older dog comfortable well into their teenaged years. It is a resource that should be in the library of ever dog owner world wide! Author Susan Garrett is not only a multi time world champion in the sport of dog agility but also has been recognized by the "Dog Writers of America" for her award winning book "Shaping Success, The Education of an Unlikely Champion"

    The book opens with a detailed description of the tarantula's origins, anatomy, and physiology. Comprehensive information on care, housing, and feeding is provided for all who want to keep one or more tarantulas as pets or for scientific research. And for those who prefer to do it themselves, there is even advice on where and how to capture a tarantula in the wild! Extensive tables classify tarantulas according to classes, orders, families, and subfamilies. Still another table outlines measures one should take in the event of a tarantula bite--though in many cases a bite is little more than a passing annoyance. Dozens of color photos and scientifically accurate drawings illustrate virtually everything the reader needs to know about these exotic creatures.

    In the present volume, the author's goal of introducing children to the fascinating subject of bird life is brilliantly realized in story fashion. While "interviewing" Slaty the Junco, Redwing the Blackbird, Melody the Wood Thrush, Spooky the Screech Owl, and dozens of other common birds, our guides, Peter Rabbit and saucy Jenny Wren — and, of course, the reader — learn about their physical appearances, eating and nesting habits, and songs and calls. Over eighty years after its first publication, the book remains noteworthy and valuable for its extraordinarily successful blend of information and entertainment.

    In true National Geographic Kids magazine style, this almanac covers subjects from the march of the penguins to ancient monsters of the sea to the fascinating powers of the brain.

    But one of the challenges of a standard low-carb, high-fat keto diet is that it can be hard to stick to.Dr Michael Mosley's Fast 800 Keto is both more effective than a conventional keto regime, and healthier and more sustainable. The secret to this new approach is that it combines keto with intermittent fasting, which means you go into ketosis faster, while also being able to enjoy delicious Mediterranean-style food.Based on the latest dietary science, this book presents a simple, highly flexible three-step programme to ensure you lose weight rapidly and safely, while preserving your metabolic rate. It includes protein-rich, low-carb recipes and easy-to- follow menus from bestselling author Dr Clare Bailey, and all the other tools you need to shift stubborn fat and transform your health for good.

    But what was once fantasy is now reality. With a growing glut of good used boats on the market, its possible to sail around the world in a boat that costs less than a car. In this fascinating book, well-known boating author John Vigor turns the spotlight on 20 seaworthy sailboats that are at home on the ocean. These are old fiberglass boats, mostly of traditional design and strong construction. All are small their sizes range from 20 feet to 32 feet overall but all have crossed oceans. Many have circumnavigated the world. And all are inexpensive. There are many hundreds of small cruising boats sailing the seven seas at this moment. They explore everywhere, from the ice-bound shores of Antarctica to the high latitudes of the Northern Hemisphere. Most, however, ply the tradewind routes where flying fish play. The water is warm, and coconut trees line calm lagoons bounded by beaches of pure white sand. But choosing the right boat to cross an ocean or go around the world can be a confusing and exasperating experience, particularly if your budget is tight. Its well-nigh impossible to find objective comparisons. Vigor sets out to remedy that in this book. He compares the designs and handling characteristics of 20 different boats whose prices on the secondhand market start at about $3,000. Interviews with experienced owners (featuring valuable tips about handling each boat in heavy weather) are interspersed with line drawings of hulls, sailplans, and accommodations. Vigor has unearthed the known weaknesses of each boat and explains how to deal with them. He rates their comparative seaworthiness, their speed, and the number of people they can carry in comfort. If you have ever dreamed the dream, this is the book that will turn it into reality.

    In this revised edition, Merlin D. Tuttle, founder and science director of Bat Conservation International in Austin, Texas, offers bat aficionados the most up-to-date bat facts, including a wealth of new information on attracting bats and building bat houses and a totally revamped key to the identification of common North American species.

    Berra, whose "Darwin: The Man" lectures are in high demand worldwide, tells the fascinating story of the person and the idea that changed everything. Berra discusses Darwin’s revolutionary scientific work, its impact on modern-day biological science, and the influence of Darwin’s evolutionary theory on Western thought. But Berra digs deeper to reveal Darwin the man by combining anecdotes with carefully selected illustrations and photographs.This small gem of a book includes 20 color plates and 60 black-and-white illustrations, along with an annotated list of Darwin’s publications and a chronology of his life.