The Vanishing of a Species? is a serious treatise exploring the past evolution, present predicament and possible future extinction of a particular species on planet Earth. The species is Homo sapiens. The threat to the species is Homo sapiens. The author, a former professor of geology and geophysics, starts his exploration by putting man in context, both in terms of space and time. We find that in either case, man is not as pre-eminent as he may believe. While man is the most accomplished toolmaker this planet has ever seen, his technical progress is overpowering his social progress-an imbalance that sets the stage for his vanishing act, absent quick, corrective action. The author makes a compelling case that society's unrestricted material growth is the challenge of our times. Modern man's predicament refers broadly to man's collision course with nature-his attitude of ruthless exploitation leading to depletion of non-renewable resources, pollution of the environment, overpopulation,