We’ve all heard that a dog’s bark can be worse than its bite, but what about its yawn?

It turns out that aspect of canine behavior may provide evidence that dogs really are man’s best friend. A study out of Lund University in Sweden found that our canine companions often yawn in reaction to seeing a human do the same thing.

The phenomenon, known as contagious yawning, is prominent among many groups of animals, humans included. However, the process, which is believed to indicate empathy and help contribute to group mentality and social structure, has been less studied between species...

Read more at ABC