Anyone know a good bit about the Zoologist profession?

I am going to be going to collage in two years I have wanted to be a zoologist since I was ten. But I was wondering once I graduate where do I begin? What is a good way to get involved and get a fairly decent job that will later get me involved with conservation, and in depth studies of animals. I am especially interested in later being able to actually go out on expeditions in the natural habitats of the animals. All in all in a nut shell it would be like Im Steve Irwin.