We are not certain whether these two names denote animals of different species; we only know that the jackal ([fig. 181.]) is larger, more ferocious, and more difficult to be tamed, than the adil; but in other respects they bear a perfect resemblance. The adil, therefore, may possibly be the jackal become smaller, weaker, and more gentle, than the wild race, from being tamed and rendered domestic; for the adil is nearly the same, with respect to the jackal, as the lap-dog, or the little water spaniel, is to the shepherd’s dog. However, as this fact is only exemplified in a few particular instances; as the jackal is not, in general, domestic like the dog, and, as such great differences are seldom found in a free species, we are inclined to believe that the jackal and the adil are really two distinct species. The wolf, the fox, the jackal, and the dog, though they approach very nigh each other, form four distinct species. The varieties in the dog species are very numerous; the greatest part of which seems to proceed from their domestic state, to which they have been so long subjected. Man has multiplied the race in this species by mixing the great with the small, the handsome with the ugly, the long haired with the short, &c. But there are many varieties in the dog species, independently of those races produced by the care of man, which seem to derive their origin from the climate. The English bull-dog, the Danish dog, the spaniel, the Turkish dog, the Siberian dog, and others, derive their names from the countries of which they are natives; and there seems to be greater differences between them than between the jackal and the adil. The jackals, therefore, may have undergone several changes from the influence of different climates; and which supposition corresponds with the facts we have collected. From the writings of travellers it appears, that there are different sized jackals in all parts, that in Armenia, Silesia, Persia, and in all that part of Asia, called the Levant, where this species is very numerous, troublesome, and very hurtful; they are generally about the size of our foxes; but their legs are shorter, and the colour of their hair is of a glossy and bright yellow; and this is the reason why they have been called the yellow, or golden wolf. This species seem to have undergone many varieties in Barbary, the East Indies, the Cape of Good Hope, and in other provinces of Africa and Asia. In these hot countries they are large, and their hair is rather of a reddish brown than of a beautiful yellow; and some of them are of different colours. The species of the jackal is spread all over Asia, from Armenia to Malabar; and is found also in Arabia, Barbary, Mauritania, Guinea, and at the Cape of Good Hope. It seems to supply the place of the wolf, which is wanting, or at least, is very scarce in all these hot countries.
However, as both the jackal and the adil are found in the same countries; as the species cannot have been altered by a long continuance in a domestic state, and as there is always a considerable difference in the size, and even in the dispositions of these animals, we shall look on them as distinct species, until it be proved that they intermix and produce together. Our presumption on the difference of these two species is the better founded, as it seems to agree with the opinion of the ancients. Aristotle, after having spoken of the wolf, the fox, and the hyæna, gives some obscure intimations of two other animals of the same genus, one by the name of the panther, and the other by that of the thos. The translators of Aristotle have interpreted panther by lupus canarius, and thos by lupus cervarius; that is, the dog-wolf and the stag-wolf. This interpretation sufficiently indicates, that they considered the panther and thos to belong to the same species. But I observed, under the article lynx, that the lupus cervarius of the Latins is not the thos of the Greeks. This lupus cervarius is the same as the chaus of Pliny, which is our lynx, and which has not a single character that agrees with the thos. Homer, when painting the valour of Ajax, who singly rushes among a band of Trojans, in the midst of whom Ulysses, wounded, was engaged; compares him to a lion that suddenly springs on a troop of the thos, surrounding a stag at bay, disperses and drives them away as mean and contemptible animals. This word, thos, the commentator of Homer interprets by that of panther, which he says is a kind of weak and timid wolf: thus, the thos and panther have been considered as the same animal by some of the ancient Greeks. But Aristotle seems to make a distinction between them, without, however, giving them any distinct characters. “The thos (says he) have their internal parts like those of the wolf; they copulate like dogs, and bring forth two, three, or four young ones at a time, which are born with their eyes shut. The body and tail of the thos are longer than those of the dog; his legs are shorter, but that does not prevent him from being as swift, and he can spring much further. The lion and the thos are enemies, because they both live upon flesh, and seek their food from the same source; hence disputes arise between them. The thos never attacks, and is but little afraid of the human species. He fights with the dog and the lion, whence the lion and the thos are never seen in the same places. The smallest thos is esteemed the best. There are two species of them, and some authors even make three.[A]” This is all Aristotle says concerning the thos, and he speaks still less about the panther; for he mentions it but in one single passage in the 35th chapter of the sixth book of his History of Animals, and there says, “the panther produces four young ones at a time, which are born with their eyes shut like young wolves.” By comparing these passages with that of Homer, and other Greek authors, it seems almost certain, that the thos of Aristotle is the great jackal, and that the panther is the little jackal, or the adil. We find, that he admits the existence of two species of thos, and that he speaks of the panther but once, and that when treating of the thos. It is therefore very probable, that this panther is the small thos; and this probability seems to become almost a certainty by the testimony of Oppian, who places the panther among the number of small animals, such as the cat and dormice.”
[A] Arist. Hist. Anim.
Thus, then, the thos is the jackal, and the panther the adil, and whether they make two different species, or but one, it is certain that every thing which the ancients have said of the thos, or panther, applies to the jackal and the adil, and to no other animal. If, therefore, the true signification of these names have not been known till now, or, if they have been misinterpreted, it is because the translators were unacquainted with these animals, and that our modern naturalists were not better informed.
Though the species of the wolf approaches very near to that of the dog, yet the jackal finds a place between them both. The jackal, or adil, as Belon remarks, is an animal between the wolf and the dog. With the ferocity of the wolf he joins a little of the familiarity of the dog; his voice is a kind of howl mixed with barking and groaning. He is more noisy than the dog, and more voracious than the wolf. He never stirs out alone, but always in flocks of twenty, thirty, or forty. They collect together every day to go in search of their prey. They live principally on small animals, and make themselves formidable to the most powerful by their number. They attack every kind of cattle or poultry almost in the presence of men. They boldly enter stables, sheep-folds, and cow-houses, without any signs of fear, and when they cannot meet with any thing better, they will devour boots, shoes, harnesses, &c. and what they have not time to consume they take away with them. When they cannot meet with any live prey they dig up the carcasses of men and animals. The inhabitants are obliged to cover the graves of the dead with large thorns, to prevent these animals from scratching and digging up the bodies, for their being buried very deep in the earth is not sufficient, to prevent them from accomplishing their purpose. Numbers of them work together in this, and they accompany their labour with a doleful cry; when they are once accustomed to human bodies they search out burial places, follow armies, and keep close to the caravans. They may be stiled the ravens among quadrupeds, for they will eat the most infectious flesh. Their appetite is so constant, and so vehement, that the driest leather, skins, flesh, excrements, or the most putrified animal, is alike welcome to them. The hyæna has the same taste for putrid flesh, and also digs bodies out of their graves, on which account, though very different from each other, they have often been confounded. The hyæna is a solitary, silent, savage animal, which, though stronger and more powerful than the jackal, is not so obnoxious, and is contented with devouring the dead, without troubling the living, while all travellers complain of the cries, thefts, and gluttony of the jackal, who unites the impudence of the dog with the cowardice of the wolf, and participating of the nature of each, seems to be an odious animal composed of all the bad qualities of both.[B]
[B] There is one remarkable circumstance respecting the skin of the jackal, which Buffon has omitted; it is a great spot of a dark grey colour, formed like a lancet, the point of which is turned towards the tail of the animal; this spot is of a darker brown when the jackal is young. Sparman saw the fœtus of a jackal which was of a beautiful colour; but the spot on the back was of a deep brown.