This rambunctious German shepherd might look like a puppy, but he is 4 1/2 years old. Owing to a rare condition, he will remain small his entire life.
The dog, Ranger, is generating an army of fans on social media for his unusual looks and funny antics, and his owner, Shelby Mayo, 20, a student nurse at Grand Canyon University in Phoenix, Arizona, is using the platform to help educate breeders about his condition.
