1:33 Anyone with a dog for a pet can probably knows the special connection between dogs and humans, even if they can’t put it words. Patricia McConnell has spent her career studying and trying to understand that connection. “The bond between us is just sort of a biological miracle,” said McConnell. McConnell has studied the relationship between dogs and humans for more than 25 years. She has a PhD on the subject and is a certified applied animal behaviorist. “We’re both mammals, but we’re not as closely related to dogs as we are to a lot of other animals. And yet, we’ve brought them into our families, and they’ve brought us into our families,” said McConnell.