A while back, a study was published that showed dogs evolved separately from wolves, with an ancient common ancestor.
It is my belief that dogs have always been dogs and wolves have always been wolves.
Pretty sure God could create two things similar but not the same, if He wanted to.
:)
http://mediarelations.cornell.edu/2014/01/16/dogs-and-wolves-diverged-from-common-ancestor/
yep.