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

    As a hardy, easy care, and potentially long-lived lizard, the leopard gecko is the perfect size, attractive in its velvety skin, and fairly easy to breed. The subject of breeding geckos is covered in multiple chapters in this book led by author and herp expert de Vosjoli, who is joined by gecko specialists Dr. Roger Klingenberg, Ron Tremper, and Dr. Brian Viets, who each contribute special chapters to this up-to-date and authoritative guide. Colorfully illustrated, Leopard Geckos provides excellent general guidelines for keepers who wish to add a gecko to their vivarium and maintain their pet in excellent health and condition. The authors provide an introduction to gecko characteristics including distribution, size, longevity, and growth rate, to help beginners better understand the anatomy and behavior of these fascinating lizards. This Advanced Vivarium Systems title includes information about selecting a healthy leopard gecko, handling, housing needs, water and feeding requirements, and shedding and tail loss. Dr. Klingenberg provides the chapter “The Recognition and Treatment of Disease,” which covers specific disorders keepers should be aware of. De Vosjoli begins the discussion on breeding leopard geckos, and then is joined by Dr. Viets for a chapter on “Incubation Temperature and Hatchling Sex and Pigmentation.” Tremper’s chapter on “Color and Pattern Variations” focuses on the genetic aspects of breeding leopard geckos. The book also discusses the African fat-tailed gecko plus other eublepharids, including the African clawed gecko, Japanese leopard gecko, Malaysian cat gecko, and the Central American banded gecko.

    Experienced birders use the most easily observed and consistent characteristics--size, shape, behavior, probability, and general color patterns. The book's 101 scenes--including thirty-five double-page layouts--provide a complete picture of how these features are all related. Even the effects of lighting and other real-world conditions are illustrated and explained. Detailed and succinct accounts from two of North America's foremost raptor experts, Jerry Liguori and Brian Sullivan, stress the key identification features. This complete picture allows everyone from beginner to expert to understand and enjoy what he or she sees in the field. The mystique of bird identification is eliminated, allowing even novice birders to identify raptors quickly and simply.Comprehensive and authoritative, the book covers all thirty-four of North America's diurnal raptor species (all species except owls). Each species is featured in stunning color plates that show males and females, in a full spectrum of ages and color variants, depicted near and far, in flight and at rest, and from multiple angles, all caught in their typical habitats. There are also comparative, multispecies scenes and mystery photographs that allow readers to test their identification skills, along with answers and full explanations in the back of the book. In addition, the book features an introduction, and thirty-four color maps accompany the plates.Whether you are a novice or an expert, this one-of-a-kind guide will show you an entirely new way to look at these spectacular birds.The most complete guide to North American raptors, written by some of the foremost experts The first raptor guide using Richard Crossley's acclaimed, innovative composite images that show birds as they actually appear in the field 101 stunning color plates--including thirty-five double-page layouts--composed from thousands of photographs Comparative, multispecies plates and photos of mystery species that allow readers to test their growing identification skills Complete with introduction, 34 color maps, and detailed species accounts

    He is also the Head Teaching Fellow for the most popular course at Harvard, “Positive Psychology,” which is taken by more than 1,000 students per semester and led by Professor Tal Ben-Shahar.  Shawn received his B.A. in English from Harvard and a Master’s from Harvard Divinity School in Christian and Buddhist Ethics. Part of his interest in positive psychology stems from a troubling fact: studies have shown that many of Harvard’s undergraduates suffer from depression at some point in their college careers. One Day University is a unique educational experience  that brings intellectuals together to learn from top rated professors at Yale, Harvard, Stanford, Columbia and other prestigious universities. Chosen for their excellent teaching abilities as rated by their students, these great thinkers represent a wide variety of academic disciplines and share their knowledge in 60 minute, highly entertaining lectures. Offering the ability to learn the highlights of academic thought in world affairs, politics, history, science, art, and more; One Day University is a way to truly enjoy the thrill of learning without the pressures of tests and the high price tag of college tuition. Once reserved only for students who could attend the lectures in New York and other major cities, One Day University courses are now available to everyone from the comfort of their own homes in Kindle format.

    Marvel at Chichen Itza's massive El Castilo pyramid, swim in a cenote, and party in a steamy Caribbean cantina in Merida; all with your trusted travel companion. Get to the heart of Cancun, Cozumel and the Yucatan and begin your journey now! Inside Lonely Planet Cancun, Cozumel & the Yucatan Travel Guide: Color maps and images throughout Highlights and itineraries help you tailor your trip to your personal needs and interests Insider tips to save time and money and get around like a local, avoiding crowds and trouble spots Essential info at your fingertips - hours of operation, phone numbers, websites, transit tips, prices Honest reviews for all budgets - eating, sleeping, sight-seeing, going out, shopping, hidden gems that most guidebooks miss Cultural insights give you a richer, more rewarding travel experience - cuisine, history, art, literature, Maya heritage, landscapes, wildlife, customs and etiquette Over 30 maps Covers Cancun, Isla Mujeres, Isla Cozumel, Riviera Maya, Costa Maya and the Southern Caribbean Coast, Yucatan State, Chichen Itza, Campeche, Chiapas and more eBook Features: (Best viewed on tablet devices and smartphones) Downloadable PDF and offline maps prevent roaming and data charges Effortlessly navigate and jump between maps and reviews Add notes to personalise your guidebook experience Seamlessly flip between pages Bookmarks and speedy search capabilities get you to key pages in a flash Embedded links to recommendations' websites Zoom-in maps and images Inbuilt dictionary for quick referencing The Perfect Choice: Lonely Planet Cancun, Cozumel & the Yucatan, our most comprehensive guide to Cancun, Cozumel and the Yucatan, is perfect for both exploring top sights and taking roads less traveled. Looking for more extensive coverage? Check out Lonely Planet Mexico for a comprehensive look at all the country has to offer. Authors: Written and researched by Lonely Planet, John Hecht, Lucas Vidgen. About Lonely Planet: Since 1973, Lonely Planet has become the world's leading travel media company with guidebooks to every destination, an award-winning website, mobile and digital travel products, and a dedicated traveler community. Lonely Planet covers must-see spots but also enables curious travelers to get off beaten paths to understand more of the culture of the places in which they find themselves.

    Teaches the structure and function of plants and surveys the entire plant kingdom.

    With extensive treatment of the heart of epidemiology-from study designs to descriptive epidemiology to quantitative measures-this reader-friendly text is accessible and interesting to a wide range of beginning students in all health-related disciplines. A unique focus is given to real-world applications of epidemiology and the development of skills that students can apply in subsequent course work and in the field. The text is also accompanied by a complete package of instructor and student resources available through a companion Web site.

    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.

    John was a still sleepy island, this updated version provides a respite from busy Cruz Bay. The guide offers an insiders view into the quintessential St. John with its hiking trails, scrambles and gut walks. Singer, a long time island resident, provides a framework for reference with lots of fast facts and an easy to read description of places of interest, flora and fauna, amidst a well laid backdrop of St. John s rich history and island legend. --Virgin Voice, December 2006 January 2007

    Mile-by-mile road logs document every approach to the park and every interior road. Through charts and explanations, readers learn of Yellowstone's campgrounds and facilities, geyser basins and the frequency of the geyser eruptions, and out-of-the-way hikes. Updates include descriptions of new lodgings, scientific information reflecting recent research, 65 new color photos, and revised maps. A field guide to the animals and plants, a selected reading list, and a 21-page index round out this comprehensive guidebook.

    This introduction to the life of the past as revealed through fossils includes:-Descriptions of the typical plants and animals of major geological eras-Maps showing where fossils can be found-The history of the development of life on earthFull-color illustrations and concise information make this an invaluable and enjoyable guide to a fascinating subject.

    Chapters on the structure and ecology of tree bark, descriptions of bark appearance, an easy-to-use identification key, and supplemental information on non-bark characteristics—all enhanced by over 450 photographs, illustrations, and maps—will show you how to distinguish the textures, shapes, and colors of bark to recognize various tree species, and also understand why these traits evolved. Whether you’re a professional naturalist or a parent leading a family hike, Bark: A Field Guide to Trees of the Northeast is your essential guide to the region’s 67 native and naturalized tree species.

    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.

    Line drawings highlight family characteristics, and plant entries discuss medicinal uses, edibility, toxicity, and look-alike plants. A standard reference at herbal and wilderness schools across the country, this resource is essential for herbalists, gardeners, and naturalists.