to see just how far dogs have evolved because of domestication at duke university brian hare has setup help raise labrador puppies. they tag along cruising the quad, going to basketball practice, even the track team's photo shoot. part of the program is aimed at training service dogs for the organization canine companions, but there's research being done, too, to compare the puppies to hand raised wolf pups brian hare's team runs them through a series of behavioral tests. >> puppy, look. look. okay. yes, good job! >> watch again. >> puppy, look. >> notice how this puppy looks back and forth from the researcher to the bowl and then immediately follows her point. philo the wolf puppy might look like a dog but watch him taking the same test. >> puppy, look. okay. okay, baby. >> so you can see philo didn't follow a point here. >> but a puppy this age would? >> totally. exactly. it looks like dog puppies come into the world prepared to understand us in a way that wolf puppies are not because of domestication and interaction with us. >> you've done testing of wolves. overall what have you fo