You are just about deciding where exactely to go in this strange zoo when you and your friends run into a green uniformed warden.
"Can I help you, ladies and gentleman?"
As Lydia is very much interested in biology she curiously asks the older looking zoo employee: "Is there anything really special in this place you can recommend us? We were told that this new zoo is different than others. But until now we don´t think so!"
"Well. I would be exceptionally happy to show your our labratory and animal care department. I am quite positive that you will notice a few special things then!" And without further explainations the zoo employee indicates to follow him.
You only wonder why this - somehow creepy - guy is laughing to himself...