Moon said that while he was being treated for cancer, his dog was a constant source of strength and support.
"The thing that’s really special about dogs is they're just there for you, and they don’t really expect anything," he said.
Denali would crawl into bed with Moon as he laid in a hospital bed, and was always cautious with the medical equipment. After Moon recovered, the pair headed back out on their adventures.
Having a friend to endure the highs and lows of life with was invaluable for Moon.
"You're growing into adulthood and this one constant was there," he said.