This book is intended to meet the academic requirements of the subject Environmental Sciences and Zoology for graduate and post graduate students in Indian universities irrespective of their major subject of study. While meeting the exact knowledge, this book has a holistic approach to the subject for easy and logical comprehension. The contents have been prepared keeping in mind the widest possible variations in the background of the user. A comprehensive and balanced coverage of the entire syllabus is the hall mark of this book.

Works as an assistant professor in department of Basic Science, SRMS College of Engineering and Technology, Bareilly, (U.P.), India.Worked as a senior research assistant in Dr. Rammanohar Lohia Avadh University, Ayodhya, (U.P.), INDIA. Worked as a senior research fellow in National Bureau of Fish Genetic Resources (ICAR), Lucknow, (U.P.), India.