First of all, feel free to call me an idiot here if this is a stupid question, but I thought I would ask anyway. Would it be possible to keep two different types of animals (say, a lizard and a frog) in the same habitat? Like if you found a lizard and a frog that live in the same conditions and had a tank that was big enough, would it be ok to keep them together? Maybe if one of them was ground-dwelling and one was arboreal, kind of like keeping bottom-dwelling and mid-level fish in the same tank?