Horses

While we have a great many kinds of horses in America, horses are not natives of this country. Just where wild horses were first tamed and used is not certainly known. It is believed that in early ages the horse was a much smaller animal than it now is, and that it gradually attained its present size. Where food was abundant and nutritious and the climate mild and healthful, the early horses developed large frames and heavy limbs and muscles; on the other hand, where food was scarce and the climate cold and bleak, the animals remained as dwarfed as the ponies of the Shetland Islands.

Fig. 239. The Family Pet

Source: Agriculture for Beginners