Immunology: A Comparative Approach discusses the immunological features of a wide range of living organisms. It considers the merits of the laboratory mouse as an immunological representative; opportunities for bypassing technical obstacles in one model by using another; the immunological implications of changes in overall structure, physiology and way of life; and progress made in the study of defence mechanisms in animals and plants of commercial importance. This book is written for students and research workers with some knowledge of mainstream immunology who are curious about the advances, opportunities and challenges in comparative work.