I found an[URL='http://www.redorbit.com/images/pic/41502/mapping-genetic-origins-of-stray-dogs/'] interesting article[/URL] suggesting that researchers believe that there's indeed a difference between street dogs and domesticated dogs... the one living in our homes. I guess it makes me happy to know that they may have a slight difference because I honestly believe that house dogs and street dogs are more different than we think they are. Just in case you were wondering, in my country most of our dogs are known for being street dogs and strays.