I keep two cats and they are both fascinated by my corn snake, Cirice. She's on the lowest level and the only one that they can see. She's also the only one who moves very much.

There are times that I go into the snake/craft room and both cats are there standing with their hind legs pressed again the glass of Cirice's T8, their eyes following her every move. Its adorable, but I'd hate to think what would happen if they ever met without the glass between them!