Description : Describes the different types of zebras, where they live, how they socialize and protect their young from predators, and the dangers zebras face from urban growth in Africa.
Description : A brief introduction to zebras, discussing their characteristics, habitat, life cycle, and predators. Includes a range map, life cycle illustration, and amazing facts.
Description : Describes the physical characteristics, behavior, habitat, uses, and endangered status of this black and white striped animal found on the plains of Africa.
Description : Presents an introduction to zebras, discussing their physical characteristics, different types, herding behavior, life cycle, and future threats to the Grevy and mountain zebras.
Description : Renowned primatologist Robert Sapolsky offers a completely revised and updated edition of his most popular work, with over 225,000 copies in print Now in a third edition, Robert M. Sapolsky's acclaimed and successful Why Zebras Don't Get Ulcers features new chapters on how stress affects sleep and addiction, as well as new insights into anxiety and personality disorder and the impact of spirituality on managing stress. As Sapolsky explains, most of us do not lie awake at night worrying about whether we have leprosy or malaria. Instead, the diseases we fear-and the ones that plague us now-are illnesses brought on by the slow accumulation of damage, such as heart disease and cancer. When we worry or experience stress, our body turns on the same physiological responses that an animal's does, but we do not resolve conflict in the same way-through fighting or fleeing. Over time, this activation of a stress response makes us literally sick. Combining cutting-edge research with a healthy dose of good humor and practical advice, Why Zebras Don't Get Ulcers explains how prolonged stress causes or intensifies a range of physical and mental afflictions, including depression, ulcers, colitis, heart disease, and more. It also provides essential guidance to controlling our stress responses. This new edition promises to be the most comprehensive and engaging one yet.
Description : Force ratios are an important variable in warfare and in nature. On the Serengeti, large zebra herds are hunted by small prides of lions. But with their overwhelming majority, why don¿t the zebras unite and attack the lions? Ecological interactions between predators and their prey are complex. The mathematics underlying different types of survival strategies for attacker and evader have been worked out by ecologists. While not a perfect metaphor, these quantitative ecology models greatly resemble behavioral interactions during counterinsurgency operations. This paper suggests a framework for other researchers to adapt and expand. Indeed, many of the models discussed are common to both ecologists and economists.