I don't know why someone would want to take a wild animal and keep it in a small cage, anyway. Seems kind of cruel. Hellooooo...your gambian rats belong in GAMBIA. Boomslangs and brown tree snakes and boas and pythons don't belong in this country, either. How about the snake-head fish? Nor do iguanas, caimans, or whatever. Exotic animals, when released...do incredible ecological damage to native species. And they WILL escape, or just be set free by owners who have grown bored of them. Just have a look at Hawaii, and the horrible toll non-native species have done there. Cats, pigs, dogs, goats, mosquitoes, you name it.