There's no need to look through dozens of photos of birds that don't live in Pennsylvania. This book features 117 species of Pennsylvania birds, organized by color for ease of use. Do you see a yellow bird and don't know what it is? Go to the yellow section to find out. Fact-filled information, a compare feature, range maps and detailed photographs help to ensure that you positively identify the birds that you see.

    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.

    It contains 2,500 underwater photographs of 2,000 species. It presents 108 fish families in one of 20 Identification groups based on a family's related visual or behavioural characteristics, such as Large Oval / Colourful or Sand/Burrow Dwellers.

    In Blame It on the Rain, author Laura Lee explores the amazing and sometimes bizarre ways in which weather has influenced our history and helped to bring about sweeping cultural change. She also delights us with a plethora of fascinating weather-related facts (Did you know that more Britons die of sunburn every year than Australians?), while offering readers a hilarious overview of humankind's many absurd attempts to control the elements.If a weather-produced blight hadn't severely damaged French vineyards, there might never have been a California wine industry. . . .What weather phenomenon was responsible for the sound of the Stradivarius?If there had been a late autumn in Russia, Hitler could have won World War II. . . .Did weather play a part in Truman's victory over Dewey?Eye-opening, edifying, and totally unexpected, Blame It on the Rain is a fascinating appreciation of the destiny-altering vagaries of mother nature—and it's even more fun than watching the Weather Channel!

    Requiring only basic algebra and trigonometry, the new edition is notable for its readability, learning features and numerous full-color photos and illustrations. A systems approach is used to cover state-of-the-art communications technologies, to best reflect current industry practice. This edition contains greatly expanded and updated material on the Internet, cell phones, and wireless technologies. Practical skills like testing and troubleshooting are integrated throughout. A brand-new Laboratory & Activities Manual provides both hands-on experiments and a variety of other activities, reflecting the variety of skills now needed by technicians. A new Online Learning Center web site is available, with a wealth of learning resources for students. An Instructor Productivity Center CD-ROM features solutions to all problems, PowerPoint lessons, and ExamView test banks for each chapter.

    Honeybees Make Honey; Mason Bees Make Food.

    

    Is that butterfly outside your window a Monarch or a Giant Swallowtail? What's the best kind of feeder for attracting birds to your backyard? This pocket-size, brilliantly colorful, simple-to-use guide is an ideal introduction to the birds of the Eastern United States. It contains dozens of full-color photographs that enable readers of all ages to identify the most common species; range maps; tips on attracting and observing birds; information on habitat needs, life cycle, food preferences; and much more. Special features include:Coverage of 100 speicesUnique organization by birds' plumage colorsUser-friendly color tab index for quick referenceBrilliant full-color photographs of each species, plus separate images of male and female when plumage differsUseful tips for attracting birdsInformation on voice, habitat, nest, eggs, incubation time, population trends, behavior, birdhouse and feeder preferences, and much more

    But as animals can only be spied on by getting quite close Heinrich adopts ravens, thereby becoming a "raven father," as well as observing them in their natural habitat, studying their daily routines, and in the process painting a vivid picture of the world as lived by the ravens. At the heart of this book are Heinrich's love and respect for these complex and engaging creatures, and through his keen observation andanalysis, we become their intimates too.Throughout history there has existed an extraordinary relationship between humans and ravens. Ravens, like early humans, are scavengers on the kills of great carnivores. As scavengers, ravens were associated with hunters they found in the north: wolves and, later, men. The trinity of wolf, man, and raven in the hunt is an extremely ancient one. In considering the appeal of the raven, Bernd Heinrich suspects that a meeting of the minds might reside in that hunting trinity.Heinrich's passion for ravens has led him around the world in his research. Mind of the Raven takes you on an exotic journey--from New England to Germany, Montana to Baffin Island in the high Arctic--offering dazzling accounts of how science works in the field, filtered through the eyes of a passionate observer of nature.Heinrich has a true gift; through his stories, his beautiful writing, illustrations, and photography, the ravens come alive. Each new discovery and insight into their behavior is thrilling to read. just as the title promises, the reader is given a rare glimpse into the mind of these wonderful creatures.Following the dictum of Leonardo da Vinci--"It is not enough to believe what you see. YOU Must also understand what you see"--Bernd Heinrich enables us to see the natural world through the eyes of a scientist. At once lyrical and scientific, Mind of the Raven is bound to be a modern classic.

    It's a watery force connected to the earth, climate control and so to the eventual fate of the human race.Whitty's thirty-year career as a documentary filmmaker and diver has given her sustained access to the scientists dedicated to the study of an astonishing range of ocean life, from the physiology of extremophile life forms to the strategies of nesting seabirds to the ecology of whale falls (what happens upon the death of a behemoth).No stranger to extreme adventure, Whitty travels the oceanside and underwater world from the Sea of Cortez to Newfoundland to Antarctica. In the Galapagos, in one of the book's most haunting encounters, she realizes: "I am about to learn the answer to my long-standing question about what would happen to a person in the water if a whale sounded directly alongside: would she, like a person afloat beside a sinking ship, be dragged under too?" This book provides extraordinary armchair entree to gripping adventure, cutting-edge science, and an intimate understanding of our deep blue home.

    A collection of fascinating facts, tidbits and quotes from the world of science and technology.This is a quick read, which you can easily scan through and find easy to read, short facts about the world around us, as well as some quotes from well known faces in science.Topics in the book include;BiologyChemistryPhysicsHealthSocietyEarth & EnvironmentAnimals & NatureSpaceTechnology & EngineeringQuotes

    While these are essential, many young ecologists need to figure out how to actually do research themselves. How to Do Ecology provides nuts-and-bolts advice on how to develop a successful thesis and research program. This book presents different approaches to posing testable ecological questions. In particular, it covers the uses, strengths, and limitations of manipulative experiments in ecology. It will help young ecologists consider meaningful treatments, controls, replication, independence, and randomization in experiments, as well as where to do experiments and how to organize a season of work. This book also presents strategies for analyzing natural patterns, the value of alternative hypotheses, and what to do with negative results.Science is only part of being a successful ecologist. This engagingly written book offers students advice on working with other people and navigating their way through the land mines of research. Findings that don't get communicated are of little value. How to Do Ecology suggests effective ways to communicate information in the form of journal articles, oral presentations, and posters. Finally, it outlines strategies for developing successful grant and research proposals. Numerous checklists, figures, and boxes throughout the book summarize and reinforce the main points. In short, this book makes explicit many of the unspoken assumptions behind doing good research in ecology, and provides an invaluable resource for meaningful conversations among ecologists.

    Over 380 genera. More than 3700 species and cultivars.Dirr's Encyclopedia of Trees and Shrubs is the most comprehensive visual reference to more than 3700 species and cultivars. From majestic evergreens to delicate vines and flowering shrubs, Dirr features thousands of plants and all the essential details for identification, planting, and care. Color photographs show each tree's habit in winter, distinctive bark patterns, fall color, and more. Dirr's Encyclopedia of Trees and Shrubs is a critical addition to any garden library.

    Some are so rare, they were once more valuable than gold. Some found in ancient mythology hold magical abilities, including the power to turn a person to stone. Others have been used by assassins to kill kings, and sorcerers to revive the dead. Here, too, is vegetation with astonishing properties to cure and heal, many of which have long since been lost with the advent of modern medicine.Organized alphabetically, The Big, Bad Book of Botany combines the latest in biological information with bizarre facts about the plant kingdom's oddest members, including a species that is more poisonous than a cobra and a prehistoric plant that actually "walked." Largo takes you through the history of vegetables and fruits and their astonishing agricultural evolution. Throughout, he reveals astonishing facts, from where the world's first tree grew to whether plants are telepathic.Featuring more than 150 photographs and illustrations, The Big, Bad Book of Botany is a fascinating, fun A-to-Z encyclopedia for all ages that will transform the way we look at the natural world.

    As a pragmatic, hands-on guide for beginning to intermediate hobbyists, The Conscientious Marine Aquarist demystifies the process of planning, setting up, stocking, and managing a beautiful, thriving slice of the tropical ocean. A leading advocate for the responsible collection and care of wild-caught specimens, Fenner starts with the basics -- "What is a fish?" -- and proceeds to give the reader the scientific background and expert-level secrets to being a smarter consumer, better steward, and more successful marine aquarium keeper.