In the United States and Canada as of 2012, cropped ears are still more common in show dogs, even though the practice of cosmetic cropping is currently opposed by the American Veterinary Medical Association. In March 2005 the AKC breed standard was changed to include a description of the uncropped ear, but to severely penalize an undocked tail. The tail of a boxer is typically docked before the cartilage is fully formed, between 3–5 days old.