Dogs shed tears of joy when they reunite with their beloved owners after spending several hours apart, a recent study by a Japanese research team has found.Although animals have been known to shed tears to protect their eyes, this is the first time it has been confirmed that dogs can also cry as an emotional response, said Miho Nagasawa, assistant professor of animal behavior at Japan's Azabu University who contributed to the study.The volume of tears in a dog likely increases due to the production of oxytocin, commonly called the "love hormone," when it becomes excited after seeing its own…READ FULL ARTICLE
