Photo: ViktoriaSapata/Depositphotos
We all know how loyal dogs can be.
According to new research, it seems their joy extends beyond a wagging tail and gleeful jumps.
Pups can be so overjoyed to see their humans that their eyes actually well up.
Photo: ViktoriaSapata/Depositphotos
We also made the discovery of oxytocin as a possible mechanism underlying it.
Usually referred to as the love hormone, oxytocin works the same in dogs as it does in humans.
The results showed an increase in the tear volume after dogs were returned to their owners.
Afterward, they performed another experiment, in which oxytocin was added to dogs' eyes.
This also resulted in a higher tear volume.
Dogs have become a partner of humans, and we can form bonds, Kikusui adds.
