I think that the Louisville Zoo probably has some zookeepers???
I think that the starting skill level for professions should be much higher, maybe level 6-8. I don't want to be grinding First Aid if i'm a Doctor. i should be grinding carpentry etc.
At the moment choosing most professions only gives you a little head start in your specialist skill. This makes a lot of professions not worth choosing and they do not have much/any impact on your play style.