The weakest species of useful animals were rendered domestic the earliest of any. The sheep and goat were subjugated before the horse, the ox, or the camel. They were also transported from one climate to another with greater ease; hence the great variety which are to be met with in these species, and the difficulty of recognizing the original breed of each. It is certain, as we have proved, that our domestic sheep, as they at present exist, could not support themselves without the assistance of man; it is, therefore, evident that Nature did not produce them as they at present are, but that they have degenerated under our care; consequently we must search among the wild animals for those which come the nearest to the sheep; we must compare them with the domestic sheep of foreign countries, examine the different causes of the alteration, change, and degeneration, which has had such influence upon the species, and endeavour to restore all these various and pretended species to a primitive race, as we have done in that of the ox.
The sheep, with which we are acquainted, is only to be met with in Europe, and some of the temperate provinces of Asia; if transported into Guinea, it loses its wool, and is covered with hair, it decreases in fertility, and its flesh has no longer the same taste. It cannot subsist in very cold countries, though a breed of sheep is to be found in cold climates; especially in Iceland, who have many horns, short tails, and harsh thick wool, under which, as in almost every animal in the north is a second lining, of a softer, finer, and thicker wool. In warm countries, on the contrary, the sheep have generally short horns and a long tail, some of which are covered with wool, others with hair, and a third kind with a mixture of wool and hair. The first of these sheep of a warm country is that commonly called Barbary sheep, or the Arabian sheep, which resembles the domestic kind, excepting the tail which is so loaded with fat, as to be often more than a foot broad, and weighs upwards of twenty pounds. This sheep has nothing remarkable but his tail which he carries as if a pillow was fastened to his hinder parts. Among this kind of sheep, there are some whose tails are so long and heavy, that the shepherds are obliged to fasten small boards with wheels to them, to enable the animal to walk along. In the Levant, these sheep are cloathed with a very fine wool, while in warm countries, as Madagascar, and the Indies, they are covered with hair. The superabundance of fat, which in our sheep fixes about the kidneys, in these animals descends upon the vertebræ of the tail; the other parts of their body are less charged with it than our fed sheep. This variety is to be attributed to the climate, the food, and the care of men; for these broad, or long-tailed sheep, are domestic like ours, and even demand more care and management. This breed is much more dispersed than the common kind. They are common in Tartary, Persia, Syria, Egypt, Barbary, Ethiopia, Madagascar, and even as far as the Cape of Good Hope.
In the islands of the Archipelago, and chiefly in the island of Candia, there is a breed of domestic sheep, of which Belon has given the figure and description under the name of strepsiceros: this sheep is of the make and size of our common kind; it is like that covered with wool, and only differs from it by the horns, which are erect, and in form of a screw.[F]
[F] Sonnini observes that this race is also very common in Hungary and Austria where it is called zackl.
In short, in the warmest countries of Africa and India, there is a breed of large sheep with rough hair, short horns, hanging ears, and a kind of dewlap under the neck. This sheep, Leo Africanus, and Marmol call adimain, and it is known to the naturalists by the names of the Senegal ram, the Guinea ram, the Angola sheep, &c. He is domestic, like ours, and like him, subject to varieties. The sheep, though they differ in particular characters, resemble each other so much in other respects that we cannot doubt they are of the same kind. Of all domestic sheep, this appears to approach nearest to a state of nature; he is larger, stronger, quicker, and consequently more capable of supporting himself; but as he is only found in the hottest countries, and cannot bear cold, and as he does not exist in his own climate in a wild state, but is domestic and obliged to the care of man for his support we cannot regard him as the primitive breed, from which all the rest have derived their origin.
In considering domestic sheep, therefore, according to the difference of climate, we find, 1. The sheep of the north, who have many horns, and whose wool is coarse. The sheep of Iceland, Gothland, Muscovy, and other parts of the north of Europe, have all coarse hair, and appear to be of the same breed.
2. Our sheep whose wool is very good and fine in the mild climates of Spain and Persia, but in hot countries changes to a rough hair. We have already observed the conformity in the influence of the climates of Spain and Chorazan, a province of Persia, upon the hair of goats, cats, and rabbits; it acts in the same manner upon the wool of sheep, which is very fine in Spain, and still finer in that of Persia.
3. The broad-tailed sheep, whose wool is also very fine in temperate countries, such as Persia, Syria, and Egypt; but which in warm countries, changes into hair more or less coarse.
4. The strepsiceros, or Canadian sheep, who resembles ours both in wool and make, excepting the horns, which are erect, and in the form of a screw.
Engraved for Barr’s Buffon