Doubt if any taxi is going to pay you without experience. I started by calling all the local taxi's and saying I would work for free in exchange for training. Many dont want to help because the minute your trained you become competition to them. I did finally find someone willing to take me on, and it took 9 months of doing it on my dime before they even thought of offering me pay.
There are a number of schools as well. Keep in mind even with a school, you only do one or two specimens of any type (deer, bird, fish, etc). That is a good foundation, however it takes a long time to actually learn the detailed anatomy of each animal. Going to a school might get your foot in the doors somewhere, but you will still have a lot to learn.
It's fun work and I enjoy doing it, but there is a ton of competition, not much pay, and if your sick, your income stops until you get back to the shop. My suggestion is to get a real job and do taxi work as a hobby. You will make more money and have health insurance, etc.
Good luck to you!