I have a puppy (he'll be 2 years old in May) and well I consider him to be my baby.
Here's a picture of him as a baby:
I still look at this picture and think "awwwwwwwwwwwww. what a cute puppyyyyyyy."
Now he's grown into kind of a monster and is huge and bulky as he still thinks he's this size.
Now one of Tahoe's favorite things to do is eat stuff that he's not supposed to. (Typical dog right?) Yet when it comes down to it he's a complete baby. He believes that whatever we put in the trash is fair game for him because technically we do not want it anymore. Wouldn't that technically be true? He believes that we don't want anymore can now become his mid-day snack. His new thing to gloat about to the other dogs at the dog park.
For instance, one day we came home and found this in our living room. He had taken all of his toys and torn the stuffing out of them. To us this was just a huge mess that was going to be a pain to clean up. To Tahoe it was his favorite animals all around him and he was able to play with them as much as he wanted. Could this be considered an art work to a dog? Did his tearing up of his favorite toys just so he could lie in them become his own art work? Many do believe so. The "dirt" that he had created in our living room turned out be an artwork for him as he fought us while we tried to clean it up. He was proud of his creation and did not want anyone to mess it up.
If no one knew the truth most art could be considered "garbage" or "dirt". It doesn't take a trained eye to see that it can be right in front of you wherever you go. Also in the picture below, Tahoe loves his first christmas tree. To him this was art as well :)