I will study animals soon and with this I think I am going to be able to work at a Zoo.
The study is in Animal Behavior. I think there is no specific school if you want to work in a zoo. I guess that you can also study to become a veterinarian for exotic animals. I think you must acquire a lot of knowledge with behavior or health, or even both. I guess with that you will be able to work in a zoo.
Try searching for animal behavior schools, courses, or veterinarian courses. Maybe you can even get some online schools. :)
Hope this helps!
Maybe we can keep in contacts! I would love to work with animals too. :)