Banham zoo exists inside Elli and Emma's heads... and maybe, just maybe as a physical place somewhere in the galaxy, but I'm not holding my breath, inside there are lots of people who all closely resemble animals... just like Dave the pigeon, who for some reason looks nothing like a pigeon... meh, I suppose these things happen. Its quite a fun game to look round at your friends/family/random strangers trying to figure out what animals they look like, it also gives you a macabre look on your face as you try to figure out what they look like... which could be fun to scare the crap out of these people with that "You don't know what I'm thinking" look that you gain... but that really is another story altogether...