This book represents an evolutionary approach to defense mechanisms of all living organisms. The results achieved in developmental and comparative immunology are among the most interesting data in immunology. These results have great impact on our understanding fundamental problems of the pathology of the human immune system. At the same time, the field of evolutionary immunology provides not only inspiration for further investigation in biomedicine, but also a number of results applicable in clinical and commercial practice.

This book evaluates the advantages and limitations of studying the development of defense reactions. In addition to reviewing the major and crucial achievements of the past, the book offers a comprehensive state-of-the-art treatise focused primarily on the latest experiments described in the last few years.