See this question asked by someone who wants to be a whale trainer. I think dolphin training and whale training both fall under Marine Mammal Trainer, so the info might also be useful to you. As well as education you should also work on getting as much hands-on experience as you can. Maybe try to volunteer at a Marine Animal Rehabilitation Center.
zoologist can do, from being a lab technician, to a veterinarian, to being an animal caretaker/trainer/breeder, to being a wildlife biologist. Each job requires different experience, training, and each has different tasks specific to a job.
Careers in zoology span a tremendous range of biological subdisciplines, from systematics and taxonomy to physiology and biochemistry to ecology and behavior—all connected by the subject of study: animals.
With a zoology degree, you could work in teaching institutions, industry (food, health, pharmaceutical, agriculture, and biotech), government agencies (e.g., environmental protection, food and drug, fish and wildlife, land management agencies, park services, water quality, and agriculture), as well as zoos and nongovernmental conservation organizations.
Acrologist, Anesthetist, Animal Behaviorist, Animal Breeder, Animal Scientist, Apiarist, Aquaculturist, Aquarium Director, Aquatic Biologist, Behavioral Ecologist, Bioanalyst, Bioengineer, Biological Consultant, Biological Illustrator, Biomedical Researcher, Biophysicist, Biostatistician, Biotechnologist, Cell Culture Operator, Comparative Anatomist, Conservation Officer, Conservationist, Cytotechnologist, Dentist, Developmental Biologist, Ecologist, Embryologist, Endocrinologist, Entomologist, Environmental Health Specialist, Environmental Impact Analyst, Environmental Planner, Ethologist, Field Biologist,
Fish Culturist, Fisheries Biologist, Food & Drug Inspector,
Forest Ranger, Game Farm Manager, Game Manager, Genetic Counselor, Geneticist, Helminthologist, Herpetologist, Histologist, Hospital Administrator, Ichthyologist, Insect Quarantine Inspector, Laboratory Manager, Laboratory Technician, Limnologist, Mammalogist,
Mariculturist, Marine Biologist, Medical Assistant, Medical Entomologist, Medical Technologist, Microscopist, Molecular Biologist, Morphologist, Museum Curator, Museum Director, Museum Technician, Naturalist, Nature Center Director, Neuroscientist, Nurse, Nutritionist, Ornithologist, Paleoecologist, Paleontologist, Parasitologist, Park Naturalist, Park Ranger, Park Superintendent, Pathologist,
Peace Corp Representative, Pest Control Specialist, Pharmaceutical Salesman, Pharmacologist, Physician,
Physician Assistant, Physiologist, Podiatrist, Population Geneticist, Professor, Protozoologist, Radiologist, Rancher,
Range Ecologist, Research Associate, Science Writer, Sociobiologist, Surgeon, Taxidermist, Taxonomist, Teacher,
Toxicologist, Veterinarian, Veterinary Assistant, Water Quality Analyst, Wildlife Biologist, Wildlife Ecologist, Wildlife Photographer, Zoo Assistant, Zoo Director, Zoo Keeper, Zoologist
Some of the varied careers forged by our graduates:
Academic, Ammonite Man, Animal Park Curator, Antarctic Explorer & Biologist, Curator of Marine Mammals, Dinosaur Hunter, Douglas Houghton Fellow, Environmental Consultant, Horse Lecturer, Keeper of the Royal Oryx, Mammal Conservationist, Marine Artist, Museum Curator & Fossil Hunter, National Trust Ranger, Radio Producer, Science Writer, Zoo Scientist