Whats a job with wild animals?

i absolutly love wild animals. its the only job i can ever picture myself wanting to go to work for. Anything but a vet is fine I just need some ideas. I dont mind world traveling either if necessary cause there all over the world. knowledge or fear would not be a problem either. Like wolves, lions, bears, leapords, cheetahs are just some of the ones im just fancinated with...though i really love them all prey or predetor. any suggestions would be great. thanks so much ^_^