In size and stature these beautiful animals considerably exceed any that have been seen in this country of late years. They are truly, as may be judged from their portraits, an elegant and graceful pair, having, when led out into the yard in their couples, very much of the air and manners of a brace of greyhounds. When noticed or fondled they purr like a cat; and this is their usual mode of expressing pleasure. If, on the other hand, they are uneasy, whether that uneasiness arises from cold, from a craving after food, from a jealous apprehension of being neglected, or from any other cause, their note consists of a short, uniform, and repeated mew. They are extremely fond of play, and their manner of playing very much resembles that of the cat; with this difference, however, that it never, as in the latter animal, degenerates into malicious cunning or wanton mischief. Their character, indeed, seems to be entirely free from that sly and suspicious feeling of mistrust which is so strikingly visible in the manners and actions of all the cats, and which renders them so little susceptible of real or lasting attachment. The Chetahs, on the contrary, speedily become fond of those who are kind to them, and exhibit their fondness in an open, frank, and confiding manner. There can, in fact, be little doubt that they might with the greatest facility be reduced to a state of perfect domestication, and rendered nearly as familiar and as faithful as the dog himself.
From the strongly marked group, to the illustration of various species of which the foregoing pages have been dedicated, we pass by a natural and easy transition to an animal, which, although closely resembling them in its zoological characters, and in the cowardly ferocity of its disposition, bears nevertheless a stronger affinity to the dogs, with which it was associated by Linnæus. From each of these groups it is, however, readily distinguished by several obvious and essential characters, of sufficient importance to sanction its separation as a genus, now universally adopted among naturalists.
Like both the cats and the dogs, the Hyænas are 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 terminating in a short, thick, and obtuse muzzle. Like most carnivorous animals, they are armed in each jaw with six cutting teeth, and two canine, the latter of which are of considerable size and strength. The outermost pair of incisors in the upper jaw are much larger and stronger than the rest, and closely resemble the canine in form. The number of the molar or cheek teeth is five on each side in the upper jaw, and four in the lower; and all of them are remarkable for their extreme thickness and strength in comparison with those of the dogs and cats. Their tongue is similar to that of the latter animals in the roughness which it derives from the sharp and elevated papillæ with which it is covered.