Evolutionary biology has witnessed breathtaking advances over the years. This book describes the advances and explains why a cross-disciplinary and integrated approach to research questions is so essential. It discusses the origins of biological diversity, and mechanisms of evolutionary change at the molecular and developmental levels. "This is an important contributory book, which synthesizes the classical concepts of organic evolution with recent findings and developments in the field of Evolutionary Biology."---K. K. Verma, Bionotes