Something I got thinking about during a recent trip down to London Zoo with my little boy. It's nothing like it was in its hey-day... London Zoo these days is filled with the small to medium sized animals - preferably the ones that don't move around and need that much space. Oh, and a handful of Big Cats that seem to spend all day lying on their sides in the sun. It's a sorry state of affairs when you have more fun patting the goats and chickens in the Children's Farm than you have in the actual...