User:Tmansour/Horse/to do

Size
The English-speaking world measures the height of horses in hands, abbreviated "h" or "hh", for "hands high", measured at the highest point of an animal's withers, where the neck meets the back, chosen as a stable point of the anatomy, unlike the head or neck, which move up and down; one hand is 4 in. Intermediate heights are defined by hands and inches, rounding to the lower measurement in hands, followed by a decimal point and the number of additional inches between 1 and 3. Thus a horse described as "15.2 h", is 15 hands, 2 inches (62 in) in height. The size of horses varies by breed, but can also be influenced by nutrition.

The general rule for cutoff in height between what is considered a horse and a pony at maturity is 14.2 hands (58 in). An animal 14.2 h or over is usually considered to be a horse and one less than 14.2 h a pony. However, there are exceptions to the general rule. Some breeds which typically produce individuals both under and over 14.2 h are considered horses regardless of their height. Conversely, some pony breeds may have features in common with horses, and individual animals may occasionally mature at over 14.2 h, but are still considered to be ponies.

The distinction between a horse and pony is not simply a difference in height, but takes account of other aspects of phenotype or appearance, such as conformation and temperament. Ponies often exhibit thicker manes, tails and overall coat. They also have proportionally shorter legs, wider barrels, heavier bone, shorter and thicker necks, and short heads with broad foreheads. They often have calmer temperaments than horses and also a high level of equine intelligence that may or may not be used to cooperate with human handlers. In fact, small size, by itself, is sometimes not a factor at all. While the Shetland pony stands on average 10 hands high (40 in), the Falabella and other miniature horses, which can be no taller than 30 in, the size of a medium-sized dog, are classified by their respective registries as very small horses rather than as ponies.

Light riding horses such as Arabians, Morgans, or Quarter Horses usually range in height from 14 to 16 hands (56 to 64 in) and can weigh from 850 to 1200 lb. Larger riding horses such as Thoroughbreds, American Saddlebreds or Warmbloods usually start at about 15.2 hands (62 in) and often are as tall as 17 hands (68 in), weighing from 1100 to 1500 lb. Heavy or draft horses such as the Clydesdale, Belgian, Percheron, and Shire are usually at least 16 to 18 hands (64 to 72 in) high and can weigh from about 1500 to 2000 lb.

The largest horse in recorded history was probably a Shire horse named Sampson, who lived during the late 1800s. He stood 21.2½ hands high (86.5 in), and his peak weight was estimated at 3360 lb. The current record holder for the world's smallest horse is Thumbelina, a fully mature miniature horse affected by dwarfism. She is 17 in tall and weighs 60 lb.