Dogs making faces

SENSORSPOT/E+/GETTY IMAGES (PITBULL); CATHERINE LEDNER/DIGITAL VISION/ GETTY IMAGES (FRISE); STEVE HICKEY/ALAMY STOCK PHOTO (GREYHOUND)

Hey, Human!

Are dogs’ facial expressions trying to tell us something?

AS YOU READ, THINK ABOUT how dogs respond when you talk to them. Why might they react this way?

You wave a treat in front of your pet pooch, cooing, “Who’s a good boy?” Your dog widens his eyes hopefully, pants, does a happy jig, and wags his tail. It’s like he’s trying to say, “I really am a good boy! Now gimme that treat!”

Interactions like this make it easy to assume that when we talk to our canine companions, they’re trying to communicate back. Because of their facial expressions and body language, “we get the impression that dogs understand everything we say to them,” says Juliane Kaminski. She’s an animal psychologist at the University of Portsmouth in England.

But are dogs really trying to talk to us? Kaminski and a team of scientists set out to investigate.

A woman and a dog

COURTESY OF UNIVERSITY OF PORTSMOUTH/HELEN YATES

SOCIAL SCIENTIST: Juliane Kaminski studies how animals interact and communicate.

PAWS AND EFFECTS

Kaminski recruited 24 dogs of different breeds to participate in an experiment. In a quiet room, she had the dogs’ owners perform four actions, one at a time. Each person faced his or her dog while holding a treat and then faced the dog with no treat. Next, owners faced a wall while holding a treat, and then faced the wall without a treat. A camera recorded the dogs’ facial expressions during each trial.

Later, Kaminski reviewed the images and assigned a code to each expression the dogs made. Then she looked for patterns in the data. Kaminski found that the dogs changed expressions more often when they could see their owners’ faces. It didn’t matter if their owner was holding a tasty treat or not.

BARKING UP THE RIGHT TREE

The results suggest that the dogs weren’t just looking for food—they were trying to send a message to their owners. What exactly were the pups trying to say? It’s tempting to think they wanted to tell their owners they were happy to see them or begging for a treat. But no one can know for sure what the dogs were feeling.

These findings fit in with Kaminski’s previous research. In one study, she found that dogs were less likely to steal food from people’s plates if people were looking at them. This suggests that eye contact, which is important for communication, is significant to dogs.

In another study, Kaminski found that dogs who raise their eyebrows more often tend to get adopted more quickly. Interestingly, that expression was one the dogs in her recent study made again and again. “It’s the typical puppy dog eyes that every dog owner falls for,” says Kaminski. It clearly causes a powerful reaction in people: making our hearts melt.

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