Developmental biology examines how plants and animals grow and develop, including processes like regeneration, metamorphosis, asexual reproduction, and stem cell growth. It focuses on cell differentiation, where different cell types arise, and regeneration, the ability to regrow lost parts. Other key areas include regional specification, morphogenesis, and growth. This book highlights innovative aspects of developmental biology, offering valuable insights and a clear, student-friendly presentation of essential topics, making it an indispensable resource for advancing knowledge in the field.