I have a friend here in Florida that owns a Llama farm, or at least he owns 9 Llama. He has two, what he says are Geckos, roaming around his barn. They kill and eat rats. Now that, to me, is a pretty large Gecko! More like a Monitor lizard I would say. I'd sure like to have a few at my house, as the rats always eat the grapefruit and oranges before I can get them.