Do dogs really cry?
We know that dogs can sense our emotions, and we know they are capable of grief, but can they cry real, emotional tears? ... Like humans, dogs have tear ducts to help keep their eyes functioning properly. However, a dog's tear ducts drain the liquid back towards the throat and nose area instead of spilling out.
Reference:
When Dogs Cry | Why Dogs Cry | Cesar's Way
Jul 2, 2019