Rapid progress in Life Sciences has resulted in the generation of voluminous information which often remains ignored in traditional textbooks especially in India and neighbouring countries. Students realize this defecit when they face competitive exams. Considering this situation, this book “Zoology at a glance” is written to deal not only with the old terms prevalent for decades and centuries but also to explain recently introduced terminologies from various fields of Zoology notably Genetics, Biotechnology, Biochemistry, Physiology, Microbiology and Environmental Biology. In addition, this book will enhance general knowledge of anybody interested in Zoology. Recency and easiest possible language are major attributes of the book.