Can dogs see (or sense) ghosts?

Question

My dog is just acting a bit funny on the back porch at the moment....

Answer 1

not only the dog but also all animal can see which is invisible for human being.you can observe if a person in a  critical condition and he is the threshold of death,the pet animal make horrible sound and birds will make unusual voice.there is no ghost in the world but jinn -good and bad-in Arabic called jinn and shythan

Answer 2

GOD, GHOST OR YOUR DOG ONLY CAN ANSWER THIS.

Answer 3

cold water scare off ghosts. throw a bucket of water at the dog that's howling to protect him. if he shuts up, you can be proud you helped him ... and yourself to get some sleep

Answer 4

They do have some kind of sixth sense. They can tell when an earthquake is about to occur and can sense when there is something wrong.