Mainly Chihuahua is classified as a miniature toy dog breed because of its tiny size and compact build.
Generally, this Miniature was selectively bred to maintain its small stature and portability.
They are also categorized as miniature toy dog breeds due to their diminutive features.
Their tiny size and compact build make Yorkie a miniature toy dog breed.
They led to their classification as miniature toy dog breeds due to the refinement of their size and features.
French Bulldog's compact size makes them miniature toy dog breeds.