Einstein, The World's Smallest Miniature Horse

Controversies
Horse or pony?
There is an ongoing debate over whether a miniature horse should possess horse or pony characteristics. This is a common controversy within the miniature horse world and also is a hot debate between mini aficionados and other horse and pony breed owners. While technically any member of Equus caballus under 14 hands 2 inches (58 in; 150 cm) is termed a "pony," many breeds, including some miniature breeds, actually retain a horse phenotype and their breed registry therefore classifies them as horses.