english: Diana Reiss: You may think you're looking through a window at a dolphin spinning playfully, but what you're actually looking through is a two-way mirror at a dolphin looking at itself spinning playfully.
non_english: Dajana Rajs: Možda ćete misliti da gledate kroz prozor u delfina koji se razdragano vrti, ali u stvari gledate kroz dvosmerno ogledalo u delfina koji posmatra sebe kako se razdragano vrti.