As you want to earn after completing B. Sc in Zoology so you want to get information about jobs so here I am giving you same:

Some Job Types for that you can apply:

Animal Behaviorists
Animal breeders
Animal Trainers
Animal Caretakers
Animal and Wildlife Educators
Animal rehabilitator
Conservationists
Documentary Maker
Forensic Experts
Lab Technicians
Researcher
Wildlife Biologists
Veterinarian
Zoo keeper
Zoo Curator

Some Areas where you can apply for jobs:
Hospitals
Medical laboratories
Museums
Pharmaceutical Companies
Hatcheries
Environmental Agencies
Universities
Colleges
Agricultural firms
Wild life rehabilitation centers

Salary Structure:
Fresher in this field can earn a salary of Rs.8,000 to Rs.13,000 per month initially.