Ponies are typically classified as members of Equus caballus that mature at less than 14. 2 hands (58 inches, 147 cm). However, some pony breeds may occasionally have individuals who mature over 14. 2 but retain all other breed characteristics. Also, some organizations use a different measurement cutoff to distinguish horses and ponies. There are some breeds once classified as ponies that now frequently mature over 14. 2 hands due to modern nutrition and management, yet retain the historic classification. For the purposes of this list, if a breed registry classifies the breed as a “pony,” it is listed here as such, even if some individuals have horse characteristics. Otherwise, where there is a dispute as to “horse” or “pony” status of a breed, “horse” is the default.