1) Cats hunt alone but in the wild they live in colonies, and there is a pecking order. Much of cat behavior stems from colony life; for example, cat feces are a scent-marker of who's boss in the area. Cats bury their turds to disguise their scent, so that the dominant cat won't see them as a challenger.

2) Dogs have an instinctual tendency for symbiosis with humans that cats do not have. Accordingly, if you want a cat to stay with you, you have to earn its respect. For this reason a human-feline relationship can be extremely rewarding.