It exists. I shot a deer a couple years ago that had old scars from the previous year. She was shot at the top of her shoulders, back a couple inches, just below the spine and above the lungs. I couldn't believe she was alive after looking at the scars. When we skinned her everything was healed nicely, very little scar tissue other than right at the hole.

The previous year to that, my Dad shot a buck that had been shot a few days earlier. It was hit back farther but still high, guessing above the liver/below the spine. Again I would have thought that deer should have been dead, but it showed no ill affects and was chasing does when shot. We never saw the extra hole until we were skinning it.

Some things are true whether you believe them or not.