Hey there!

Depending upon your college and syllabus, the recommended books may differ. Also, you did not mention which semester are you referring to.

However, the recommended books are often written below the syllabus for that semester.

Please mention the subjects that you have chosen in your M.Sc. (Zoology) and also the semester. We'll revert back to you with the books you can refer for your examination.

Hope this helps. Good luck!