But roaming the planet are four times as many dogs who are their own masters—neighborhood dogs, dump dogs, mountain dogs. They are dogs, not companions, and these dogs, like pigeons or squirrels, are highly adapted scavengers who have evolved to fit particular niches in the vicinity of humans. In What Is a Dog? experts on dog behavior Raymond and Lorna Coppinger present an eye-opening analysis of the evolution and adaptations of these unleashed dogs and what they can reveal about the species as a whole. Exploring the natural history of these animals, the Coppingers explain how the village dogs of Vietnam, India, Africa, and Mexico are strikingly similar. These feral dogs, argue the Coppingers, are in fact the truly archetypal dogs, nearly uniform in size and shape and incredibly self-sufficient. Drawing on nearly five decades of research, they show how dogs actually domesticated themselves in order to become such efficient scavengers of human refuse. The Coppingers also examine the behavioral characteristics that enable dogs to live successfully and to reproduce, unconstrained by humans, in environments that we ordinarily do not think of as dog friendly. Providing a fascinating exploration of what it actually means—genetically and behaviorally—to be a dog, What Is a Dog? will undoubtedly change the way any beagle or bulldog owner will reflect on their four-legged friend.

    Approximately 200,000 years ago, as modern humans began to radiate out from their evolutionary birthplace in Africa, Neanderthals were already thriving in Europe--descendants of a much earlier migration of the African genus Homo. But when modern humans eventually made their way to Europe 45,000 years ago, Neanderthals suddenly vanished. Ever since the first Neanderthal bones were identified in 1856, scientists have been vexed by the question, why did modern humans survive while their evolutionary cousins went extinct?The Invaders musters compelling evidence to show that the major factor in the Neanderthals' demise was direct competition with newly arriving humans. Drawing on insights from the field of invasion biology, which predicts that the species ecologically closest to the invasive predator will face the greatest competition, Pat Shipman traces the devastating impact of a growing human population: reduction of Neanderthals' geographic range, isolation into small groups, and loss of genetic diversity.But modern humans were not the only invaders who competed with Neanderthals for big game. Shipman reveals fascinating confirmation of humans' partnership with the first domesticated wolf-dogs soon after Neanderthals first began to disappear. This alliance between two predator species, she hypothesizes, made possible an unprecedented degree of success in hunting large Ice Age mammals--a distinct and ultimately decisive advantage for humans over Neanderthals at a time when climate change made both groups vulnerable.

    Our species emerged out of the depths of time into a world already populated by these great carnivores. Before we mastered iron and later developed firearms, we had few defences against bears--only watchful caution and elaborate ceremonies and sacrifices to ward off fear.Where human populations grow, bears have traditionally dwindled or disappeared. But when we return to the wild, to places where bears still survive, all our primeval fears awaken again. The risk of an automobile accident on the way to bear country far outstrips the risk of a close-range encounter with a bear, but it's the bear that worries us as we hurtle down the pavement at a hundred kilometres an hour.In this timely and sensitive book, Kevin Van Tighem calls on decades of experience, knowledge and understanding in order to enlighten readers about our relationship with and attitude toward bears. Along the way we are confronted with the realities confronting these great animals as a result of our ever-expanding human population and their ever-shrinking natural habitat. Through historical research, field observation, practical advice, personal anecdotes and an array of stunning photos, Van Tighem has written a comprehensive book that is meant to demystify bears in order to promote a deeper understanding of these powerful yet vulnerable creatures.

    Unlocking the secrets of our genomes opens the door to understanding why we are the way we are and potentially fixing what ails us, from cancer and diabetes to obesity and male pattern baldness. But what exactly will happen to this information? Will it be a boon or just another marketing tool?Here Is a Human Being is the first in-depth look at personal genomics—its larger-than-life research subjects; its entrepreneurs and do-it-yourselfers; its technology developers; and the bewildered physicians and regulators who must negotiate with it—and what it means to be a “public genome” in a world where privacy is already under siege.

    Loyal, obedient, and affectionate, they are truly “man’s best friend.” But do dogs love us the way we love them? Emory University neuroscientist Gregory Berns had spent decades using MRI imaging technology to study how the human brain works, but a different question still nagged at him: What is my dog thinking?   After his family adopted Callie, a shy, skinny terrier mix, Berns decided that there was only one way to answer that question—use an MRI machine to scan the dog’s brain. His colleagues dismissed the idea. Everyone knew that dogs needed to be restrained or sedated for MRI scans. But if the military could train dogs to operate calmly in some of the most challenging environments, surely there must be a way to train dogs to sit in an MRI scanner.   With this radical conviction, Berns and his dog would embark on a remarkable journey and be the first to glimpse the inner workings of the canine brain. Painstakingly, the two worked together to overcome the many technical, legal, and behavioral hurdles. Berns’s research offers surprising results on how dogs empathize with human emotions, how they love us, and why dogs and humans share one of the most remarkable friendships in the animal kingdom.   How Dogs Love Us answers the age-old question of dog lovers everywhere and offers profound new evidence that dogs should be treated as we would treat our best human friends: with love, respect, and appreciation for their social and emotional intelligence.

    And before there were fish in the sea, there were cephalopods - the ancestors of modern squid and Earth’s first truly substantial animals. Cephalopods became the first creatures to rise from the seafloor, essentially inventing the act of swimming. With dozens of tentacles and formidable shells, they presided over an undersea empire for millions of years. But when fish evolved jaws, the ocean’s former top predator became its most delicious snack. Cephalopods had to step up their game. Many species streamlined their shells and added defensive spines, but these enhancements only provided a brief advantage. Some cephalopods then abandoned the shell entirely, which opened the gates to a flood of evolutionary innovations: masterful camouflage, fin-supplemented jet propulsion, perhaps even dolphin-like intelligence. Squid Empire is an epic adventure spanning hundreds of millions of years, from the marine life of the primordial ocean to the calamari on tonight’s menu. Anyone who enjoys the undersea world—along with all those obsessed with things prehistoric—will be interested in the sometimes enormous, often bizarre creatures that ruled the seas long before the first dinosaurs.

    In Darwin Comes to Town, evolutionary biologist Menno Schilthuizen shows that evolution can in fact happen extremely quickly, and in the strangest of places: the heart of the city.Menno Schilthuizen is one of a growing number of “urban ecologists” studying how our manmade environments are accelerating the evolution of the animals and plants around us. Cities are extreme environments and, in a world of adapt or die, the wildlife sharing these spaces with us is being forced to adopt fascinating new ways of surviving, and often thriving.--Carrion crows in the Japanese city of Sendai have learned to use passing traffic to crack nuts.--Spiders in Vienna are adapting to build their webs near moth-attracting streetlights, while moths in some cities are developing a resistance to the lure of light bulbs.--Certain Puerto Rican city lizards are evolving feet that better grip surfaces like concrete.--Europe’s urban blackbirds sing at a higher pitch than their rural cousins, to be heard over the din of traffic, while many pigeons have eschewed traveling “as the crow flies” in favor of following manmade roads.Darwin Comes to Town draws on these and other eye-popping examples to share a stunning vision of urban evolution in which humans and wildlife co-exist in a unique harmony. It reveals that evolution can happen far more rapidly than Darwin dreamed, while providing a glimmer of hope that our race toward overpopulation might not take the rest of nature down with us.

    What explains these far-flung distributions? Why are species found where they are across the Earth? Since the discovery of plate tectonics, scientists have long conjectured that plants and animals were scattered over the globe by riding pieces of ancient supercontinents as they broke up. In the past decade, however, that theory has foundered, as the genomic revolution has made reams of new genetic data available. And the data has revealed an extraordinary, stranger-than-fiction story that has sparked a scientific revolution. In The Monkey's Voyage, biologist Alan de Queiroz introduces a radical new theory of how species as diverse as monkeys, baobab trees, and burrowing lizards made incredible long-distance ocean crossings: pregnant animals and wind-blown plants rode rafts and icebergs and even stowed away on the legs of sea-going birds to create the map of life we see today. In other words, these organisms were not merely victims of continental fate; they were masters of their geographic destiny. And as de Queiroz shows, the effects of oceanic dispersal have been crucial in generating the diversity of life on Earth, from monkeys and guinea pigs in South America to beech trees and kiwi birds in New Zealand. By toppling the idea that the slow process of continental drift drove odd distributions of organisms, this new theory highlights the dynamic and unpredictable nature of the history of life. In the tradition of John McPhee’s Basin and Range, The Monkey's Voyage is a beautifully told narrative of a profound investigation into the importance of contingency in history and the nature of scientific discovery.

    Drawing upon new research into cat genetics, brain chemistry, evolution, social behavior, and interaction with humans and fellow felines, acclaimed author and scientist Stephen Budiansky explores the mysteries of these amazing creatures. Wide-ranging, lively, and engaging, The Character of Cats also covers the full spectrum of feline fact and lore, from history, superstition, and religious imagery to hunting patterns, sexual behavior, and preferred colors. This smart, wonderfully readable book finally gives cats their due.

    If the world lost the sub-species, it would be the largest land mammal since the woolly mammoth to go extinct. In "The Last Rhinos," Anthony recounts his attempts to save these animals.The demand for rhino horns in the Far East has turned poaching into a dangerous black market that threatens the lives of not just these rare beasts, but also the rangers who protect them.The northern white rhino's last refuge was in an area controlled by the infamous Lord's Resistance Army, one of the most vicious rebel groups in the world. In the face of unmoving government bureaucracy, Anthony made a perilous journey deep into the jungle to try to find and convince them to help save the rhino.

    With numerous black-and-white images and eight pages of color plates, The Lives of Ants provides a state-of-the-art look at what we now know about these fascinating creatures, portraying a world that is rich and full of surprises, one which, even after decades of observation, is still full of unsolved mysteries.The authors illuminate the world of the ant, shedding light on such topics as the ant's impressive abilities in direction finding and quite amazing ingenuity when it comes to building their nests, finding supplies, or exploiting other members of the animal kingdom. They show, too, that they are capable of aggression and violence, which can disturb the apparent peace of their colonies and embroil them in fratricidal or matricidal strife. Even their sexual arrangements are at times quite strange. In this area, as in many others, they display marked originality. Readers also discover that ants are walking bundles of secretory glands (they have about forty of them), which enable them to emit between ten and twenty different pheromones, each of which has its own "meaning." Some are produced by workers for recruiting their sisters or for alerting them to danger. Others are used for marking territory, for identifying members of their colony or conversely for detecting foreigners, and for indicating the location of food. In addition, ants can also emit sound signals, made of a high-pitched squeak, and they can even dance, though not as intricately or as well as bees.The Lives of Ants combines natural history with molecular biology, genetics, and even the latest developments in robotics, to explore the remarkable societies of ants, revealing the secrets of their mysterious lives.

    Written by an experienced teacher and examiner, Cambridge IGCSE Biology Workbook helps students build the skills required in both their theory and practical examinations. The exercises in this write-in workbook help to consolidate understanding and get used to using knowledge in new situations, develop information handling and problem solving skills, and develop experimental skills including planning investigations and interpreting results. This accessible book encourages students to engage with the material. The answers to the exercises can be found on the Teacher's Resource CD-ROM.

    

    Evolutionists have never been able to completely explain why birdsong is so inventive and why many species devote so many hours to singing. The standard explanations of defending territories and attracting mates don't begin to account for the variety and energy that the commonest birds exhibit. Is it possible that birds sing because they like to? This seemingly naive explanation is starting to look more and more like the truth. Why Birds Sing is a lyric exploration of birdsong that blends the latest scientific research with a deep understanding of musical beauty and form. Drawing on conversations with neuroscientists, ecologists, and composers, it is the first book to investigate the elusive question of why birds sing and what their song means to both avian and human ears. Whether playing his clarinet with the whitecrested laughing thrush in Pittsburgh, or jamming in the Australian winter breeding grounds of the Albert's lyrebird, Rothenberg immerses himself in the heart and soul of birdsong. He approaches the subject as a naturalist, philosopher, musician, and investigator. An intimate look at the mostlovely of natural phenomena, Why Birds Sing is a beautifully written exploration of a phenomenon that's at once familiar and profoundly alien.

    Bursting with all the suspense and intrigue of a fast paced adventure novel, here is Johanson’s lively account of the extraordinary discovery of “Lucy.” By expounding the controversial change Lucy makes in our view of human origins, Johanson provides a vivid, behind-the-scenes account of the history of pealeoanthropology and the colorful, eccentric characters who were and are a part of it. Never before have the mystery and intricacy of our origins been so clearly and compellingly explained as in this astonighing and dramatic book.