The cat is considered to be the second pet that spread after the dog. In contrast , cat remained an independent animal . The little cat is admired because of very strong character traits : independence , personality and naturalness . Third , the natural ( small size , autonomy , cleaning ) make cat companion for people working or living in an apartment . Cats require a flat object on which to sharpen claws . If you do not have one, definitely , furniture and sofas in the house will suffer . Cats that have access to the courtyard can practice this “sport” freely, the trees of the garden . They use to play with things from the house, like cats in the next video .