So, you want to explore careers with animals, do you? How is your education? You need at least a high school diploma to get into most programs. If you don't have a diploma, but have your GED, you can still do most veterinary work - except for the veterinarian degree itself. For that you will need the diploma and college, lots of college!
To the Top of Careers with animals Everyone, no matter what program they pursue, need to know the business of running a practice. Whether that's a veterinary practice or as a pet groomer, you need to be able to reconcile your checking accounts, make appointments and deal with customers. In most places, a little selling is desirable - up-sell to the next size food or booking an appointment for an in-between grooming treatment to the final bill, for instance. If you can master bookkeeping programs on the computer, so much the better. Perhaps running the office will be in your future.
Animal trainers are often certified in the style of training they practice. As a trainer, no certifications are necessary, not even a high school diploma. You will still want to pursue some business courses if possible. Understanding animals and their behaviors will go a long way to being successful in any training career. So, if it is possible, get your GED and at least a 2-year degree at a local college so that you have a grounding in business and psychology. Trainers set their own fees for the most part. The fees are generally close to what the market will bear. Most trainers work in classroom-style formats at the local park. Some work with individual animals only. Often, a business license is required.
A Petsitter needs no education beyond running a business, and the career is covered extensively on the petsitter pages. I won't cover it again, here.
For the rest of the careers, you will need some biology and other science classes for other certifications. There are programs available for veterinary assistant and veterinary technician either online or by correspondence for states where there is no in-state training available. Even a veterinary training college does not guarantee a veterinary assistant or technician program is offered. You can contact the local university and your local city or state licensing board to see what training and certifications or licensing are required where you live. Wages tend to be mid-range for these positions. Better than minimum wage, but not quite professional. If the going rate is $22,000 for a person with a 2-year college degree, you might get $30,000.