Dog Ghost Picture

Denise sent an awesome ghostly dog picture...a ghost picture with a dog standing right in front of the stone. We're sure it's a dog, almost as if it is warily walking up to the man. Take a look at the close-up:

"This picture is taking in Benson Arizona. This is a very old cemetery. Is it just me or are their really Ghost dog in this picture. I have had some people say yes at least three of them and I have had some say it just my imagination. What do you see? No animals were with us. We, (my 7 year old son, the guy in the picture, my son's godparents and I) went to Benson to see the new Wal-Mart, and go shopping. We were driving around and Duane (guy in the pic) wanted to see the graveyard. So we went... to the graveyard. I didn't have a camera, but I had my camera phone. So, I took pictures. This particular picture, when I sent it to my email, looked strange...which is now why I am inquiring to someone who is more experienced in the field. When I first looked at it, I thought I saw a dog. Again, no dogs were least no live dog."

The only way to further answer the question as to whether this is a ghostly dog, would be to go back to the site and see if anything is there that might have caused this.