Question

sometimes, dogs , bark even we do not hear any sound Or see someone around why do they do so? ​

Answer 1

Answer:

Because dogs have to sense from which they can feel and see the spirits or ghosts in our home.

Answer 2

If your dog wants to go outside and his/her wish is not being fulfilled, he/she barks at the door to show his frustration. Some dog breeds to stay happy. If you own an active canine, make sure to give him/her sufficient physical activity.