THE HORSE
Value of the Strength of the Horse to Man.—Origin of the the Solid Hoof.—Domestication of the Horse.—How begun.—Use as a Pack Animal.—For War.—Peculiar Advantages of the Animal for Use of Men.—Mental Peculiarities.—Variability of Body.—Spontaneous Variations due to Climate.—Variations of Breeds.—Effect of the Invention of Horseshoes.—Donkeys and Mules compared with Horse.—Especial Value of these Animals.—Diminishing Value of Horses in Modern Civilization.—Continued Need of their Service in War.
The largest economic problem which primitive people on their way upward towards civilization had unconsciously to face was that of obtaining some kind of strength which could be added to the power of their own weak limbs. For all his eminent capacities of body, man is not a strong animal, nor is he so built that he can apply the measure of strength that is in him to good advantage. There are scores if not hundreds of species with which he came in contact in his effort to dominate nature that are stronger, swifter, and better provided with natural weapons. With the first step upward, as in almost all the succeeding steps, the advance depended on securing more energy than that with which our kind was directly endowed. It is hardly too much to say that the progress of mankind beyond the savage state would probably never have been effected but for the bodily help which has been rendered by a few domesticated animals.
From the point of view of the student of domesticated animals the races of men may well be divided into those which have and those which have not the use of the horse. Although there are half a score of other animals which have done much for man, which have indeed stamped themselves upon his history, no other creature has been so inseparably associated with the great triumphs of our kind, whether won on the battle-field or in the arts of peace. So far as material comfort, or even wealth, is concerned, we of the northern realms and present age could, perhaps, better spare the horse from our present life than either sheep or horned cattle; but without this creature it is certain that our civilization would never have developed in anything like its present form. Lacking the help which the horse gives, it is almost certain that, even now, it could not be maintained.
We know the ancient natural history of the horse more completely than that of any other of our domesticated animals. We can trace the steps by which its singularly strong limbs and feet, on which rests its value to man, were formed in the great laboratory of geologic time. The story is so closely related to the interests of man that it will be well briefly to set it before the reader. In the first stages of the Tertiary period, in the age when we begin to trace the evolution of the suck-giving animals above the lowly grade in which the kangaroos and opossums belong, we find the ancestors of our mammalian series all characterized by rather weakly organized limbs fitted, as were those of their remoter kindred the marsupials, for tree climbing rather than for moving over the surface of the ground. The fact is, that all the creatures of this great clan acquired their properties of body in arboreal life, and with such relatively small and light bodies as were fitted for tree climbing. For this use the feet need to be loose-jointed, and so the system of five toes, each terminating in a sharp and strong nail or claw, became fixed in the inheritances. When, gaining strength and coming to possess a more important place in the world, these ancient tree-dwellers were able to occupy the ground which of old had been possessed by the great reptiles, the limbs that had served well for an arboreal life had to undergo many changes in order to fit them for progression in the new realm.
If we watch the progress of a bear over the surface of the ground, we readily perceive how lumbering is its gait and how poor the speed which it attains. Its slow and shambling movement is due to the fact that it has the tree-climbing foot, and is not well fitted for motion such as is required in running. To attain anything like speed in this exercise it is necessary to support the body on the tips of the toes. Every man who has gained any skill in this art knows full well how incompetent he is if he tries to run with rapidity in the flat-footed manner. The bear cannot essay this method of progression on the toe-tips because its loose-jointed feet cannot be made to support its heavy body. In this way arose the necessity of developing a peculiar kind of foot when that part had to serve for rapid locomotion. The experiments to this end have been numerous and varied. Thus in the elephants, which retain the originally numerous toes, the bones of these members are planted in an upright position and tied together with such strong muscles and sinews, that the foot parts have something like the solidity and strength of the upper portions of the legs. In the single-hoofed or horse-like forms, and in the cloven-footed animals, other series of experiments have been tried which in the end have proved most successful, giving us animals with the speediest movements of any animals except the creatures of the air.
A Hunter