Dogs produce tears when reunited with owners, study finds

Research is first to demonstrate positive emotion provoking tears in a non-human

If your canine companion ain't nothing but a hound dog, crying all the time, it may be because they are brimming with emotion.

Researchers in Japan say they have found that dogs produce tears when reuniting with their owners. What's more, the blubbing appears to be linked to levels of the bonding hormone" oxytocin.