I was able to know stuff about the biology of the animals, why things are the way they are for certain animals. As an interpreter it's your job to interpret the animals, to relay why they do the things they do. And you didn't have to have a background in biology to do the job - one of the interpreters was a former drama teacher, and one of them was a classically trained singer. There are plenty of opportunities to learn about the animals - in fact they have a full library. I just came armed with a lot more knowledge than someone who had never interpreted before. The biology I knew gave me a deeper understanding of why things were that way.
