If you had a beaver's, you'd have orange teeth! And if you had a naked mole rat's set of teeth, you could move each one separately, like chopsticks! The animal kingdom has lots of cool teeth, but yours are pretty awesome, too!

    This is a clear, vivid text with charts and maps showing the positions of the constellations the year round.

    This entirely new diary is composed in a similar style to the Country Diary, with Edith Holden's thoughts, anecdotes, and writings interspersed with poetry, mottoes, and her exquisite watercolor paintings of flowers, plants, birds, butterflies and landscape scenes.

    Having just completed his masterpiece, The General Theory of Relativity—which provided a brand-new theory of gravity and promised a new perspective on the cosmos as a whole—he set out at once to share his excitement with as wide a public as possible in this popular and accessible book.Here published for the first time as a Penguin Classic, this edition of Relativity features a new introduction by bestselling science author Nigel Calder.

    In this new book Hawking takes us to the cutting edge of theoretical physics, where truth is often stranger than fiction, to explain in laymen's terms the principles that control our universe. Like many in the community of theoretical physicists, Professor Hawking is seeking to uncover the grail of science - the elusive Theory of Everything that lies at the heart of the cosmos. In his accessible and often playful style, he guides us on his search to uncover the secrets of the universe - from supergravity to supersymmetry, from quantum theory to M-theory, from holography to duality. He takes us to the wild frontiers of science, where superstring theory and p-branes may hold the final clue to the puzzle. And he lets us behind the scenes of one of his most exciting intellectual adventures as he seeks "to combine Einstein's General Theory of Relativity and Richard Feynman's idea of multiple histories into one complete unified theory that will describe everything that happens in the universe." With characteristic exuberance, Professor Hawking invites us to be fellow travelers on this extraordinary voyage through space-time. Copious four-color illustrations help clarify this journey into a surreal wonderland where particles, sheets, and strings move in eleven dimensions; where black holes evaporate and disappear, taking their secret with them; and where the original cosmic seed from which our own universe sprang was a tiny nut. The Universe in a Nutshell is essential reading for all of us who want to understand the universe in which we live. Like its companion volume, A Brief History of Time, it conveys the excitement felt within the scientific community as the secrets of the cosmos reveal themselves.

    The more than 1,200 color photographs and two dozen line drawings include numerous exceptionally striking images. The giant silk moths, tiger moths, and many other species covered include forest pests, common garden guests, economically important species, and of course, the Mescal Worm and Mexican Jumping Bean caterpillars. Full-page species accounts cover almost 400 species, with up to six images per species including an image of the adult plus succinct text with information on distribution, seasonal activity, foodplants, and life history. These accounts are generously complemented with additional images of earlier instars, closely related species, noteworthy behaviors, and other intriguing aspects of caterpillar biology.Many caterpillars are illustrated here for the first time. Dozens of new foodplant records are presented and erroneous records are corrected. The book provides considerable information on the distribution, biology, and taxonomy of caterpillars beyond that available in other popular works on Eastern butterflies and moths. The introductory chapter covers caterpillar structure, life cycles, rearing, natural enemies, photography, and conservation. The section titled Caterpillar Projects will be of special interest to educators.Given the dearth of accessible guides on the identification and natural history of caterpillars, Caterpillars of Eastern North America is a must for entomologists and museum curators, forest managers, conservation biologists and others who seek a compact, easy-to-use guide to the caterpillars of this vast region. A compact guide to nearly 700 caterpillars east of the Mississippi, from forest pests to garden guests and economically important species 1,200 color photos and 24 line drawings enable easy identification Full-page species accounts with image of adult insect for almost 400 species, plus succinct text on distribution and other vital information Many caterpillars illustrated here for the first time Current information on distribution, biology, and taxonomy not found in other popular works A section geared toward educators, Caterpillar Projects An indispensable resource for all who seek an easy-to-use guide to the caterpillars of this vast region

    From the springtime frolic of Oscar, Cat-About-Town to the yuletide warmth of The Christmas Day Kitten, these stories-radiantly illustrated by Peter Barrett and Ruth Brown-are perennial favorites, and this new complete edition will make a wonderful gift for all readers, great and small.

    Renowned bird biologist Les Beletsky provides a succinct description of each of the 250 birds profiled, with an emphasis on their distinctive songs. Lavish full-color illustrations accompany each account, while a sleek, built-in digital audio player holds 250 corresponding songs and calls. In his foreword, North American bird expert and distinguished natural historian Jon L. Dunn shares insights gained from a lifetime of passionate study. Complete with the most up-to-date and scientifically accurate information, Bird Songs is the first book to capture the enchantment of these beautiful birds in words, pictures, and song. The Cornell Lab of Ornithology, located in Ithaca, New York, is a nonprofit institution focused on birds and whose mission is to interpret and conserve the earth's biological diversity through research. The Macaulay Library at the Cornell Lab is the major source of sound recordings of birds for research, education, conservation, the media, and commercial products.Listen hereTrumpeter SwanLaughing GullEastern Bluebird

    In a manner no previous book has come close to achieving, through full-color photos and concise, clear, scientifically accurate text, it describes the vast majority of species associated with shade trees and shrubs, turfgrass, flowers and ornamental plants, vegetables, and fruits--1,420 of them, including crickets, katydids, fruit flies, mealybugs, moths, maggots, borers, aphids, ants, bees, and many, many more. For particularly abundant bugs adept at damaging garden plants, management tips are also included. Covering all of the continental United States and Canada, this is the definitive one-volume resource for amateur gardeners, insect lovers, and professional entomologists alike.To ease identification, the book is organized by plant area affected (e.g., foliage, flowers, stems) and within that, by taxa. Close to a third of the species are primarily leaf chewers, with about the same number of sap suckers. Multiple photos of various life stages and typical plant symptoms are included for key species. The text, on the facing page, provides basic information on host plants, characteristic damage caused to plants, distribution, life history, habits, and, where necessary, how to keep pests in check--in short, the essentials to better understanding, appreciating, and tolerating these creatures.Whether managing, studying, or simply observing insects, identification is the first step--and this book is the key. With it in hand, the marvelous microcosm right outside the house finally comes fully into view. Describes more than 1,400 species--twice as many as in any other field guide Full-color photos for most species--more than five times the number in most comparable guides Up-to-date pest management tips Organized by plant area affected and by taxa for easy identification Covers the continental United States and Canada Provides species level treatment of all insects and mites important to gardens Illustrates all life stages of key garden insects and commonly associated plant injuries Concise, clear, scientifically accurate text Comprehensive and user-friendly

    The Birder's Handbook is the first of its kind: a portable library of fascinating information not included in your identification guide. For each of the 646 species of birds that breed in North America, The Birder's Handbook will tell you at a glance: * Where the bird nests, and which sex(es) build(s) the nest;* How many eggs the bird lays, what they look like, which patent incubates and for how long, and how the young are cared for;* Food preferences and foraging habits.You will also find information about displays and mating, wintering, conservation status, and much more. In addition, The Birder's Handbook contains some 250 short essays covering all aspects of avian natural history.

    Take a trip to the highest peak in the whole world! Travel along this one-of-a-kind adventure and learn what it takes to successfully reach the top of this daring mountain. From sidebars filled with fascinating facts like why climbers need oxygen and how to protect against avalanches and frostbite to a list of all of the essentials that a climber needs on their thrilling journey, this informative text has it all. With riveting cut-paper collage illustrations, Steve Jenkins captures the majesty of one of the most extreme physical challenges and gives readers a bird’s-eye view of what it’s like to stand on top of the world.

    This charming book explores backyard favorites, such as ladybugs and lightning bugs, and introduces kids to more exotic species that inhabit rain forests and deserts around the world. Colorful photos are paired with profiles of each insect, along with facts about the creatures' sizes, diets, homes, and more. This book will quickly become a favorite at storytime, bedtime, and any other time!From the Hardcover Library Binding edition.

    For among the finches of Daphne Major, natural selection is neither rare nor slow: it is taking place by the hour, and we can watch.In this dramatic story of groundbreaking scientific research, Jonathan Weiner follows these scientists as they watch Darwin's finches and come up with a new understanding of life itself. The Beak of the Finch is an elegantly written and compelling masterpiece of theory and explication in the tradition of Stephen Jay Gould.With a new preface.

    From Warblers to Blue-tits and Kakapos to Owls, Roussen's playful, melodic poem is complemented beautifully by Walker's delicate illustrations.Jean Roussen is a Swiss French graphic designer and writer who dabbles in publishing from time to time.Emmanuelle Walker is an animation director and illustrator from Montreal, Quebec. As well as contributing to Nobrow magazine (Nobrow 8: Hysteria), she has worked with international animation studios across the world (Walt Disney Ltd., Sherbert and Nexus). She lives and works in London, England.

    The most comprehensive field guide available to the flora and fauna of California--a portable, essential companion for visitors and residents alike--from the go-to reference source for over 18 million nature lovers.This compact volume contains:An easy-to-use field guide for identifying 1,000 of the state's wildflowers, trees, mushrooms, mosses, fishes, amphibians, reptiles, birds, butterflies, mammals, and much more;A complete overview of California's natural history, covering geology, wildlife habitats, ecology, fossils, rocks and minerals, clouds and weather patterns and night sky;An extensive sampling of the area's best parks, preserves, beaches, forests, islands, and wildlife sanctuaries, with detailed descriptions and visitor information for 50 sites and notes on dozens of others.The guide is packed with visual information -- the 1,500 full-color images include more than 1,300 photographs, 14 maps, and 16 night-sky charts, as well as 150 drawings explaining everything from geological processes to the basic features of different plants and animals.