WATCH: Two-legged pup lives life like normal dog

VANCOUVER, Wash. — In March, Duncan the boxer took his first run on a beach.

Four months later, this dog, who originally is from Colorado, lives a life like any normal pet despite not having two back legs.

“He has no idea he doesn’t have two back legs and we don’t plan to tell him,” Amanda Giese narrates in the video showing Duncan’s life. “We treat him like a normal four-legged pup.”