When most of us start out learning about horses, we are told that a horse is a member of Equus caballus that is over 14 hands high (a hand, we quickly learned, is 11 cm). A pony, on the other hand, was defined as a member of the same species that was less than 14 hands. Now, miniature horses are always much smaller than 14 hands, so why are they called miniature horses rather than ponies?

When most of us start out learning about horses, we are told that a horse is a member of Equus caballus that is over 14 hands high (a hand, we quickly learned, is 10 cm). A pony, on the other hand, was defined as a member of the same species that was less than 14 hands. Now, miniature horses are always much smaller than 14 hands, so why are they called miniature horses rather than ponies?