You can train anything! My students have trained rabbits, guinea pigs, hamsters, mice, gerbils, rats, dogs, cats, iguanas, bosch lizards, skinks, goats, lambs, pigs, horses, chickens, ducks, quail and probably a load of other stuff that I've forgotten about. Would like to try a parrot and maybe a cow, but they aren't so easy to get my hands on. Dogs are too easy