Dogs Catch Human Yawns

Spying someone yawning often makes us yawn. Now, a new study shows your canine buddy can catch yawns from you, too. The results suggest domestic dogs have the capacity for a fundamental form of empathy, the researchers say.

The phenomenon, called contagious yawning, has previously been found only in humans and other primates such as chimpanzees and is thought to relate to our ability to empathize with others.

Researcher Ramiro Joly-Mascheroni first tested the phenomenon in his dog, a Labrador. Immediately upon yawning himself, Joly-Mascheroni's dog immediately yawned. And sure enough, tests on friends' pups showed similar results.

For the study, the furry cast included a wide range of dog breeds from a Greyhound to a Staffordshire Bull Terrier to a Dalmatian. In total 29 dogs went through two testing scenarios each lasting five minutes, one in which a human (not the owner) called the dog over and while keeping eye contact with the dog he or she would act out yawns that included the vocal portions.

In the non-yawning scenario, the human went through similar motions, except he or she didn't yawn vocally and instead just opened and closed their mouths.

During the yawn sessions, 21 dogs (or 72 percent of them) yawned, while no dogs yawned during the non-yawning scenario. That's compared with 45 percent to 65 percent found from past studies in humans and 33 percent found for chimpanzees.

In addition to yawning, the dogs showed similar reactions to human yawns. "In the yawning condition, we found the dogs reacted pretty much in the same way," Joly-Mascheroni said. "They all acknowledged the yawn in some way either by dropping their ears or turning their heads away."

[Source: Livescience.com]