Zoos are becoming facsimiles - or perhaps caricatures - of how animals once were in their natural habitat. If the right policies toward nature were pursued, we would need no zoos at all.
It's a wonderful profession, and it opens lots of doors, and I think it's quite right that people can accuse actors and actresses of being dilettante, but you learn on every job, whatever it is, the process moves you on in some way, and yeah, I want to expand my knowledge of our existence, I suppose.