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‘Dog Is Love’ Explains a Dog's Affection Toward Humans
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Yes, Your Dog Really Does Love You

A new book explains the special bond between people and their pups

Clive Wynne and his dog, Xephos

Sam Wynne

En español | It doesn't take an animal expert to tell you that your dog is glad to see you when the little guy acts like the Beatles have come to town every time you walk in the door. But in a new book, Dog Is Love: Why and How Your Dog Loves You, canine behaviorist Clive D.L. Wynne makes a strong case that it's “actual, bona fide affection” that dogs are offering us, due in part to their unique physiology, shaped by natural selection, that makes them primed for connection. And although the scientific community might prefer a term such as “hypersociable” — less squishy than the L-word — to describe the behavior, he writes, “I see absolutely no reason we shouldn't just call it love."

Wynne, who has a rescue dog named Xephos and is founding director of the Canine Science Collaboratory at Arizona State University, talks more about why dogs are so special.

Dog is Love book cover

Houghton Mifflin Harcourt

What convinced you that dogs’ affectionate behavior is more than self-interested maneuvering for food?

I am now completely convinced. The reward center of their brains lights up when they see their special person with an intensity that's even greater than the intensity they show toward a piece of hot dog. And other studies have shown that oxytocin, the same hormone that binds us together with people we love and mothers with infants, and so on, is crucial in the relationship we have with our dogs.

But the research that excites me the most is that we actually found genetic changes in dogs when we compared them to their wild ancestors – genetic changes that when they are found in humans [are associated with] a very rare syndrome where people have quite an exaggerated capacity for forming a strong emotional connection.

What would you say to people who read about these studies and still doubt that a dog can feel something like love?

What I say is, if you want to be skeptical about your dog's love for you, fine, that's your prerogative. But what you do need to account for is why you don't want to be skeptical about your husband, wife — the people that you think love you. What did they do that convinces you that they love you? Because everything that goes on in the body of your dog — your dog's hormones, your dog's brain activity — matches or exceeds what goes on inside the bodies of people who love each other. So if you don't believe that your dog loves you, I don't think you have any right to believe that any living thing loves you.

“If you don't believe that your dog loves you, I don't think you have any right to believe that any living thing loves you."

You said that with our awareness of dogs’ capacity for love and need for affection comes a powerful responsibility. What do you mean by that?

We need to respect it and we need to reciprocate it. People leave their dogs at home alone for 10, 12, 14 hours a day, and that's cruel. I was surprised when I visited Sweden to learn that the law demands that you do not leave your dog alone for more than four hours at a stretch. I'm not advocating that we should have that as a law in the U.S., I just think we should think not just about “what would a dog do for me?” but about “what kind of a life could I offer a dog?"

What about cats? Why are they different?

My short answer is I'm not a cat guy. My longer answer is that cats do have some social relationships with people. My sense is this: We know that cats’ domestication is much more recent — only a couple of thousand years compared to 15,000 or 20,000 years for dogs. And it's really quite recent, just the last century, that cats have been able to move inside the house. My sense is that whatever it is that happened in dogs [in terms of evolution], cats are simply in an earlier stage of it… Hopefully more people will start studying cats, because it would be really interesting to know.

If you could ask your dog one question what would it be?

Oh, I've never been asked that! I think I'd like to know what's on her mind. “What are you thinking?"

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