Asymmetry of the brain and behavior (lateralization) has traditionally been considered unique to humans. However, research has shown that this phenomenon is widespread throughout the vertebrate kingdom and found even in some invertebrate species. A similar basic plan of organization exists across vertebrates. Summarizing the evidence and highlighting research from the last twenty years, the authors discuss lateralization from four perspectives - function, evolution, development and causation - covering a wide range of animals, including humans. The evolution of lateralization is traced from our earliest ancestors, through fish and reptiles to birds and mammals. The benefits of having a divided brain are discussed, as well as the influence of experience on its development. A final chapter discusses outstanding problems and areas for further investigation. Experts in this field, the authors present the latest scientific knowledge clearly and engagingly, making this a valuable tool for anyone interested in the biology and behavior of brain asymmetries.
Covers all aspects of wild dogs: their variety of species, and where and how they live in the wild. From the grey wolf to the dingo, the South American bush dog to the whistling hunter, wild dogs have been free spirits on every continent except Antarctica and have thrived in all environments-the hottest and driest parts of Africa and Australia, the wettest forests of New Guinea and South America and the coldest parts of the Arctic Circle. Spirit of the Wild Dog is an up-to-date and highly readable account of the skills, personalities and lifestyles of these dogs. Lesley Rogers and Gisela Kaplan, both highly acclaimed authors and researchers in animal behaviour, trace the ancestry and habitats of a vast range of canine species, and discuss how much of their spirit lives on in our pet dogs. The book takes us on a fascinating exploration of how wild dogs behave, communicate, socialise, mate and hunt. It also provides insights into the extraordinary group coherence of wild dogs, their faithfulness and intelligence, their ability to learn, remember and solve problems. While humans have long lived with, worked with, loved and nurtured pet dogs, we have a love/hate relationship with their relatives in the wild. The book discusses this and brings into question the future of the wild dog. Their numbers have been declining rapidly and many relatives of our best friend face extinction unless action is taken. Including spectacular photographs of dogs in their natural habitats, Spirit of the Wild Dog is an intriguing and much needed account of the world of these admirable animals.