Small stature is used to define miniature horses. These horses are found in America and Europe, and they have evolved because of years of discriminatory breeding. Their height is between 34 and 38 inches, depending on the specific breed registry. The size is registered according to the height of the withers. Most of these miniature animals preserve the features of a horse and are considered to be as such by their individual traits, even though they fit a height-based definition to be regarded as a tiny pony. Miniature horses are generally responsive and cooperate well with people. These horses are often used for pulling carriages, and other horse show activities.