Cats may be easily trained to use a kitty litter box or tray, as this is natural behavior. Many cats and kittens will instinctively use a litter box without needing to be taught, because of their instincts to expel bodily waste in dirt or sand.[1] Therefore, with a new kitten, owners usually need to simply show the kitten where the litter box is located, and how to get in and out.