哔咔漫画安卓必看Like both the cats and the dogs, the Hy?nas are[72] completely digitigrade; that is to say, they walk only on the extremities of their toes: but these toes are only four in number on each of their feet, and are armed with short, thick, strong, and truncated claws, which are not in the least retractile, and are evidently formed for digging in the earth, a practice to which they are impelled by a horrid and hateful propensity, which we shall have further occasion to notice in describing their habits and mode of life. Their body, in shape much resembling that of the wolf, to which they also approach very nearly in size, is considerably more elevated in front than behind, owing partly to their constant custom of keeping the posterior legs bent in a crouching and half recumbent posture. Beneath the tail, which is short and dependent, they are furnished with a pouch, in the interior of which is secreted a peculiar matter of a very strong and disagreeable smell. Their head is large and broad, flattened in front, and
The well known group of which the Horse, the Ass, and the Zebra constitute the leading species, is distinguished from all other quadrupeds by the form of their hoof, which is single and undivided, rounded in front, of considerable thickness, and enveloping the extremity of their only apparent toe. They have in each jaw six powerful cutting teeth, accompanied on either side by the same number of grinders with square crowns flattened at the top: the males have two canines in the upper jaw, and frequently in the lower also; and this structure is sometimes shared by the females of the domesticated races. Between the canines and the molars[178] there is a vacant space, which, our readers scarcely need to be reminded, receives the bit, the small but irresistible instrument by means of which man has for ages exercised the most complete control over the services of these useful animals. Although purely and essentially herbivorous, their anatomy, as well as their habits, separates them most thoroughly from the Ruminan哔咔漫画安卓必看these indications it may be gathered that he approaches much more nearly to the feline than to the canine group: we shall therefore follow the example of zoologists in general, by referring him for the present and provisionally to the genus Felis, and proceed to point out more particularly the characters by which he is connected with, as well as those by which he is distinguished from, the rest of that formidable and extensive tribe.
Felis Leopardus. Linn.
To commence then with the Eagles, which form a prominent group of the Rapacious Order, and are universally regarded as the most majestic, as well as the most powerful, of birds. In common with the whole[200] Order, they are remarkable for the strong incurvation of their bill and talons, the latter of which are four in number on each of the feet, and are moved by means of a thick and strong muscular apparatus, which gives to the grasp of the larger species that extreme tenacity by which they are distinguished, enabling them to seize and carry off fish and birds, and even quadrupeds of moderate size. This innate propensity to rapine, derived from their peculiar conformation which renders them essentially flesh-eaters, indicates at once the analogical relationship borne by the Rapacious Birds to the Carnivorous Quadrupeds; and the high degree to which it is carried by the Eagles, their vast powers of flight, their towering majesty, their irresistible might, their uniform preference of living victims and rejectio
The Chetah has been until of late years very imperfectly known in Europe. Linn?us was entirely unacquainted with it, and Buffon described it from the fur alone under the name of Guêpard, the appellation by[68] which its skin was distinguished in the commerce with Senegal, but evidently without suspecting its identity with the Asiatic animal, the trained habits of which, misled probably by the authority of Tavernier, he erroneously attributed to his imaginary Ounce. Subsequent French zoologists had rectified this error, and it was generally believed that the tamed Leopard of Bernier, the Youze, the Guêpard, and Tavernier’s Ounce, were one and the same animal; but it was not until a year or two ago that the possession of a living specimen, brought from Senegal, in the Menagerie of the Jardin du Roi, enabled M. F. Cuvier to ascertain its characters with precision. The comparison of this African specimen with the skins sent from India, and with the notes and drawings made in that country by M. Duvaucel, to whom w
THE GREAT SEA-EAGLE.
Larger in size and more robust in stature than the Coatis, and approximating still more closely in their physical characters to the Bears, which may be considered as the typical group of the plantigrade Carnivora, the Racoons naturally occupy an intermediate station between the playful, timid, and harmless little creatures just noticed, and the powerful, clumsy, and dangerous animals next to be described. Like both Bears and Coatis they have in each jaw six sharp incisors, two strong canines, and twelve cheek teeth, six on each side. But these latter differ from those of the Bears, inasmuch as the whole six form a regular series, the three anterior[112] ones of which are small and pointed, and the three posterior broad and surmounted by prominent and blunted tubercles; while in the Bears the three anterior appear rather to form a supplemental appendage, being placed irregularly and at unequal distances, and not unfrequently falling out altogether as the animal advances in age: the tubercles on the crowns of t
From the Civets, to which it closely approaches in the number and in some degree also in the form of its teeth, in the asperity of its tongue, and in the semi-retractility of its claws, the group of which the Egyptian Ichneumon forms the type is distinguished by its narrower and more pointed muzzle, by the shortness of its lower lip, and more especially by the absence of the double cavity beneath the tail, which is replaced by a single pouch of considerable size, but destitute of secreting glands. Their hair is long, crisp, brittle, and always more or less variegated in colour, in consequence of each separate hair being marked by alternate rings of different shades.
It may, however, be observed, that it has been proposed to divide it into two distinct genera, the one containing the Horse alone, and characterized by the flowing tail uniformly covered with long hair, by the absence of a line of darker coloured hairs along the back, and by the presence of callous protuberances on the hind legs as well as on the fore: the other comprehending the Asses and Zebras, and distinguished by the tail having a brush of long hairs at its extremity only, by the presence of the dorsal line, and the absence of the protuberances on the posterior legs. Such a division, resting as it does on striking but not very essential differences, may fairly be admitted for the purpose of separating the genus into sections; but can hardly be regarded as founded on characters of sufficient importance to disunite so well marked and strongly connected, as well as so limited, a group. In the same paper in[179] which this new arrangement was proposed, the beautiful animal which we have now to describe was f
From the other animals of the order the Porcupines[162] are so readily distinguished by the long and pointed spines with which their body is armed, that it is unnecessary to dwell on their generic characters. The common Porcupine, when fully grown, as in the remarkably fine specimen figured over leaf, measures more than two feet from the tip of the nose to the origin of the tail. The spines, which are supported by a slender pedicel, thickly clothe the upper and posterior parts of the body, the largest being more than a foot in length; they are regularly surrounded by alternate rings of black and white. The head and neck are crested with long, bristly, black hairs, forming a kind of mane, and all the rest of the body is covered with short black hair.
But it is to the moral and intellectual faculties of the Dog that we must look for those remarkable peculiarities which distinguish him in so eminent a degree not only from his immediate neighbours, but also from every other quadruped. Unfortunately we have not the means of comparing him in a pure state of nature with the other animals of his tribe; for although it has been repeatedly attempted to determine his primitive stock, there can be no doubt that upon this point we are still as much as ever in the dark. There exist, however, in various parts of the world, considerable numbers of Dogs, the descendants unquestionably of races formerly domesticated, which, to all appearance, differ but little in their habits and manners from the Wolf and the Jackal, to one or other of which they frequently approach in form, and from each of which it has been confidently asserted that the domestic species was primarily derived. But the doubts to which this striking similarity might otherwise give rise are instantly remove
展开更多