The source is Reader's Digest. But if the apparition is stinky, well then ....[pbs.org]

The answer doesn't depend on whether or not you believe in ghosts, it depends on whether or not dogs believe in ghosts.

This is not Proof or evidence for Ghosts. Keep trying.

Dogs are sentient beings and can sense more than we can. It is only Humans that can make up a theory like a ghost.

Dogs have better senses than us. So they can sense things we can't, (having been around dogs, I have observed that first hand ). But that just means there may be something there I can't sense, it is a god of the gaps argument to just drop "ghosts" into the hole. It is just an unknown.

Dogs can hear things far out of the range of our senses.
Could we call that extra sensory perception?
Then there is their sense of smell.

I don't believe in ghosts. I also don't believe in the ground being "sour" in a place where something horrible happened. I think if someone knew nothing of Gettysburg, for example. They would not feel terrible sadness and foreboding. They would see a pleasant field with some interesting limestone rock formations.

Ghost/s, I only believe in one malevolent little beastie, the one that sneaks around the house stealing ONLY one sock from each pair.
If I ever catch the little sod, he/she/it will be wearing garlic for the rest of time....LOL

I can only say that I have experienced things that I cannot explain to this day, on two occasions it was in a double blind context with other people experiencing the same phenomena but independently of me so not a mass hallucination situation. Do things exist that are outside of our understanding and our ability to measure in a scientific manner? Of course, there is so much more for us to learn and we need to remain open to new possibilities while at the same time holding theories about these events up to rigorous scrutiny, the way a proper scientist would.

I do not believe in ghosts. Once when I was religious I did believe but now the subject is ridiculous to me. This does not mean that there are things we do not see or sense and that dogs do see and sense. Anyone who has been around dogs know they sense things in a different way than we do, and are aware of things we are not. Is this paranormal activity? That might just be words that we use. Animals do see and hear things we do not and this might get into why dogs have always been our best friends.

I know scientists who are open to the paranormal...my husband was. A Magna Cum Lauda physicist whose contributions to space were astronomical. (Pardon the pun) Where the paranormal is concerned it is not necessary for anyone to believe it. According to "Seth," an entity who dictated books through the medium, Jane Roberts, we all chose those areas of reality that serve our needs. So just focusing on the tangible here and now, is what some people choose and need. Whatever is out there, doesn't care or need for anyone to believe. Those who do accept this as real have had "evidence" that is meaningful to them and there is not need to share it or to prove it.

All this has nothing to do with today's or yesterday's religions.

In all, the quest for wisdom is something we all have to carry out in out own way. Again, Seth says there are many paths.

So we can all be friends and not impose our "way" on others. Because we respect that each of us makes these choices according to our needs.

What I find on this site, is freedom: freedom to be me, freedom from religion, and freedom from the narrow minded who deign to judge me or to dictate how I should be or think. Although I find a little of that from some atheists who really haven't fully recovered from religion, yet.

I am an agnostic who treasures the phrase, "I don't know."

It’s a really weird question to ask this group, don’t you think?

I mean, agnostics and atheists are not typically the kind of people who will just believe in anything or accept stories based on hearsay. Normally, one does not “believe in” something; rather they either believe or disbelieve, based on the facts of the matter. Otherwise they accept a story on faith, which is a position that lies well beyond the parameters of this discussion.

How can one believe in ghosts? Either one believes ghosts are a fact or they do not. I for one have not seen enough evidence to accept any assertion that ghosts exist. If there were ghosts they would necessarily be a natural, physical phenomenon… something we could observe and measure with predictable repeatability. Ghosts, if they existed, would require a locus, a source of energy and a physical description.

There is plenty of documentation that could support the notion that dogs can sense paranormal activity eh?
Where is this documentation that supports paranormal activity???

What evidence do we have that ghost exist?

As a good agnostic, I don't know if ghosts exist, just like I don't know if 'god' exists! I'm certainly not ruling it out.