Help me pinpoint the job that I am thinking of...?

I'm a young adult (translation: teenager) trying to decide what vocation to choose. To give you some background information on me, I'm the vegetarian type who loves animals. I've always been the one who saves the dying baby bat in the backyard and relocates dozens of toads to save them from the dogs. However, I'm somewhat squeamish. I don't think I could handle being a veterinarian, simply because I would then have to cope with all of the blood/internal organs. But I would love to spend my life working with animals (preferably baby animals!) and many different types, at that. Exotic ones, such as polar bears and giraffes. If you have ever heard of the recently deceased polar bear Knut and his keeper (also deceased) I would love to have that sort of relationship with young creatures. Raise them, almost. Even though I do know that those were extenuating circumstances, but you get the idea. Does anyone have any idea what sort of job could fulfill these parameters? If you do, please post an answer and I thank you kindly for taking the time!