The descriptive text includes information on size, geological period, geographical distribution, and ecology of the animal or plant before it was fossilized. In addition, the book provides lists of Geological Survey offices and major fossil collections, a geological time chart, and a guide to collecting and preserving fossils.

    Birds play a prominent role in attracting visitors, too. The shimmering quetzals, gaudy macaws, and comical toucans only begin to hint at the impressive avian diversity to be found throughout this small country."--from the Introduction This is the one field guide the novice or experienced birder needs to identify birds in the field in the diverse habitats found in Costa Rica. It features descriptions and illustrations of more than 820 resident and neotropical migrant species found in Costa Rica, all in a compact, portable, user-friendly design. The detailed full-color illustrations show identifying features--including plumage differences among males, females, and juveniles--and views of birds in flight wherever pertinent. Additional features of this all-new guide include: o 166 original color plates depicting more than 820 species. o Concise text that describes key field marks for positive identification, as well as habitat, behavior, and vocalizations. o Range maps and texts arranged on opposing pages from illustrations for quick, easy reference. o The most up-to-date bird list for Costa Rica. o A visual guide to the anatomical features of birds with accompanying explanatory text. o Quick reference to vultures and raptors in flight.

    Yet, while common, oak woodlands are anything but ordinary. In a book rich in illustration and suffused with wonder, author Kate Marianchild combines extensive research and years of personal experience to explore some of the marvelous plants and animals that the oak woodlands nurture. Acorn woodpeckers unite in marriages of up to ten mates and raise their young cooperatively. Ground squirrels roll in rattlesnake skins to hide their scent from hungry snakes. Manzanita's rust-colored, paper-thin bark peels away in time for the summer solstice, exposing sinuous contours that are cool to the touch even on the hottest day. Conveying up-to-the-minute scientific findings with a storyteller's skill, Marianchild introduces us to a host of remarkable creatures in a world close by, a world that rustles, hums, and sings with the sounds of wild things.

    Now award-winning writer Carl Zimmer takes us on a fantastic voyage into the secret parasite universe we actually live in but haven't recognized. He reveals not only that parasites are the most successful life-forms on Earth, but that they triggered the development of sex, shape ecosystems, and have driven the engine of evolution. In mapping the parasite universe, Zimmer makes the astonishing observation that most species are parasites, and that almost every animal, including humans, will at one time or another become the home of a parasite. Zimmer shows how highly evolved parasites are and describes the frightening and amazing ingenuity these commando invaders use to devour their hosts from the inside and control their behavior. The sinister Sacculina carcini makes its home in an unlucky crab and proceeds to eat everything but what the crab needs to put food in its mouth, which Sacculina then consumes. When Sacculina finally reproduces, it places its young precisely where the crab would nurture its own progeny, and then has the crab nurture the foster family members. Single-celled Toxoplasma gondi has an even more insidious role, for it can invade the human brain. There it makes men distrustful and less willing to submit to social mores. Women become more outgoing and warm-hearted. Why would a parasite cause these particular personality changes? It seems Toxoplasma wants its host to be less afraid, to be more prone to danger and a violent end -- so that, in the carnage, it will be able to move on to another host. From the steamy jungles of Costa Rica to the fetid parasite heaven of rebel-held southern Sudan, Zimmer tracks the genius of parasitic life and its impact on humanity. We hosts have developed remarkable defenses against the indomitable parasite: our mighty immune system, our culturally enforced habit of keeping clean, and, perhaps most intriguingly, sex. But this is not merely a book about the evil power of parasitism and how we must defend against it. On the contrary, Zimmer concludes that humankind itself is a new kind of parasite, one that preys on the entire Earth. If we are to achieve the sophistication of the parasites on display here in vivid detail, if we are to promote the flourishing of life in all its diversity as they do, we must learn the ways nature lives with itself, the laws of Parasite Rex.

    Thanks largely to YouTube clips posted by the sloth orphanage in Costa Rica, sloths have attracted a vast audience of admirers. Instead of seeing them as ridiculous anachronisms of which we know little, they have turned into creatures considered by many to be the most endearing on earth.Over much the same period, scientific investigations have also changed our view of sloths. No longer are they seen as total misfits in the modern world but, in the words of one specialist sloth investigator, they are 'masters of an alternative lifestyle'.In this wonderfully entertaining celebration of this most unique of creatures, William Hartston reveals the fascinating history of the sloth, from the prehistoric ground sloth to modern pygmy sloths in Panama, explores the current state of the science of sloths and reveals the truth behind sloth behaviour.

    Nearly 700 species of trees are detailed in photographs of leaf shape, bark, flowers, fruit, and fall leaves -- all can be quickly accessed making this the ideal field guide for any time of year. Note: the Eastern Edition generally covers states east of the Rocky Mountains, while the Western Edition covers the Rocky Mountain range and all the states to the west of it.

    A handy seasonal planner details which plants are available during every season. Thorough, comprehensive, and safe, this is a must-have for foragers in Alabama, Arkansas, Florida, Georgia, Maryland, Kentucky, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, and West Virginia.

    Unlike their human counterparts, who must alter their environment to accommodate our physical limitations, animals are adaptable to an amazing range of conditions--i.e., radical changes in a creature's physiology take place to match the demands of the environment. Winter provides an especially remarkable situation, because of how drastically it affects the most elemental component of all life: water.Examining everything from food sources in the extremely barren winter landscape to the chemical composition that allows certain creatures to survive, Heinrich's Winter World awakens the largely undiscovered mysteries by which nature sustains herself through the harsh, cruel exigencies of winters

    This book shows how easy it is to fill our gardens with everything from foxes, frogs and mice, to butterflies, ladybirds and thousands of fascinating creepy-crawlies.

    Illustrations of cones, catkins, nuts and fruits allow you to distinguish between similar species at a glance.This new edition builds on the strengths of the unrivalled original, now expanded to include over 220 trees and shrubs that are native to or flourish in Britain and northern Europe.

    It dispels common misconceptions about flies and reveals how truly extraordinary, exotic and important are these misunderstood creatures.There are ten chapters:1. The immature ones - Squirmy wormy larvae can be just a bit unnerving, especially when they're in large numbers.2. The pollinators - Those annoying No See Ums, or midge flies, are the only pollinator of the chocolate-producing cacao tree, a status held by many of the pollinators.3. The detritivores - These garbage eaters are often fluffy and thus water-repellent, good for a life spent in a sewer.4. The vegetarians - Entomological spelunkers, many of these flies prefer plant roots forsaking the leaves to other creatures.5. The fungivores - The mushroom eaters include the dark-winged fungus gnats whose wing patterns are one of the author's favorites.6. The predators - Here are the most devious and imaginative methods of luring, capturing and eating prey.7. The parasites - Their methods of survival are often disgusting but the evolutionary genius is admirable.8. The sanguivores - McAlister responds to the perpetual question, exactly why do we have blood-sucking disease-spreading mosquitos?9. The coprophages - The champions of dung, detritus and other unpleasant things.10. The necrophages - The body eaters without which we would be in a most disagreeable situation.In clear language, McAlister explains Diptera taxonomy and forensic entomology, and describes the potential of flies to transform their relationship with humans from one of disease vector to partner in environmental preservation. She has a wonderful knack for storytelling, deftly transforming what could be dry descriptions of biology, reproduction and morphology into entertainment. She takes readers to piles of poo in Ethiopia by way of underground caves, latrines and backyard gardens, and opens the drawers at the Natural History Museum to rhapsodize over her favorite flies.The Secret Life of Flies is full of stories and tongue-in-check descriptions, but the science is rigorous, authoritative and will be enjoyed by dipterists, lepidopterists, insect enthusiasts, naturalists, and general readers.

    From Hindu mythology to Aztec sacrifices, butterflies have served as a metaphor for resurrection and transformation. Even during World War II, children in a Polish death camp scratched hundreds of butterflies onto the walls of their barracks. But as Russell points out in this rich and lyrical meditation, butterflies are above all objects of obsession. From the beastly horned caterpillar, whose blood helps it count time, to the peacock butterfly, with wings that hiss like a snake, Russell traces the butterflies through their life cycles, exploring the creatures' own obsessions with eating, mating, and migrating. In this way, she reveals the logic behind our endless fascination with butterflies as well as the driving passion of such legendary collectors as the tragic Eleanor Glanville, whose children declared her mad because of her compulsive butterfly collecting, and the brilliant Henry Walter Bates, whose collections from the Amazon in 1858 helped develop his theory of mimicry in nature. Russell also takes us inside some of the world's most prestigious natural history museums, where scientists painstakingly catalogue and categorize new species of Lepidoptera, hoping to shed light on insect genetics and evolution. A luminous journey through an exotic world of obsession and strange beauty, this is a book to be treasured by anyone who's ever watched a butterfly mid-flight and thought, as Russell has, "I've entered another dimension."

    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.

    They are capable of incredibly complex behavior, even with brains often the size of a poppy seed. How do they accomplish feats that look like human activity— personality, language, childcare—with completely different pathways from our own? What is going on inside the mind of those ants that march like boot-camp graduates across your kitchen floor? How does the lead ant know exactly where to take her colony, to that one bread crumb that your nightly sweep missed? Can insects be taught new skills as easily as your new puppy? Sex on Six Legs is a startling and exciting book that provides answers to these questions and many more. With the humor of Olivia Judson’s Dr. Tatiana’s Sex Advice to All Creation, Zuk not only examines the bedroom lives of creepy crawlies but also calls into question some of our own longheld assumptions about learning, the nature of personality, and what our own large brains might be for.

    This guide shows how to recognize hawks the way we recognize friends at a distance: by body shape, movements, and locale.