First off, dogs are not wolves. They descended from a common ancestor about 34,000 years ago. They are both in the canidae family, but are different species. A wolf is Canis lupus and a domesticated dog is Canis familiaris. Since they are of different species and environmental factors affect both species differently, their pack behavior is different. Wolves hunt in packs for survival, dogs for the most part no longer feel the same survival pressures because they live with us. A dog will accept more than one family member as an alpha. Wolves look to one pack member as the alpha.