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彩69注册地址
彩69注册地址
版本:v7.5.759
类别:赛车竞速
大小:0.85G
时间:2021-09-18

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    彩69注册地址

    彩69注册地址官方简介:

    The very terms of the specific character by which Linn?us attempted to distinguish the domesticated from the other dogs, “the tail curved upwards (towards the left),” may be regarded as affording in themselves a sufficient proof of the difficulty of the task, when so great a naturalist, after taking a complete review of all the particulars of their organization, was compelled to rest contented with a distinction drawn from so trifling and apparently insignificant a remark. It would in fact appear to be absolutely impossible to offer in any form of words whatever a character sufficiently comprehensive to combine the almost infinite varieties of this Protean race, and at the same time to separate them from those other races from which they are generally believed to be specifically distinct. To this observation of Linn?us almost the sole addition that has been made by later zoologists consists in a remark of M. Desmarest, that whenever a spot of white is found upon any part of the[86] tail of a domestic dog, the tip of that very variable organ is also constantly white; so that we are still driven to recur to the tail alone for the only uniform physical characteristics that have been pointed out to distinguish an animal, which every one recognises at first sight, and which indeed it is impossible to mistake.
    His ground-colour is a bright yellowish fawn above, and nearly pure white beneath, covered above and on the sides by innumerable closely approximating spots, from half an inch to an inch in diameter, which are intensely black, and do not, as in the Leopard and others of the spotted cats, form roses with a lighter centre, but are full and complete. These spots, which are wanting on the chest and under part of the body, are larger on the back than on the head, sides, and limbs, where they are more closely set: they are also spread along the tail, forming on the greater part of its extent interrupted rings, which, however, become continuous as they approach its extremity, the three or four last rings surrounding it completely. The tip of the tail is white, as is also the whole of its under surface, with the exception of the rings just mentioned; it is equally covered with long hair throughout its entire length, which is more than half that of the body. The outside of the ears, which are short and rounded, is marked by a broad black spot at the base, the tip, as also the inside, being whitish. The upper part of his head is of a deeper tinge; and he has a strongly marked flexuous black line, of about half an inch in breadth, extending from the inner angle of the eye to the angle of the mouth. The extremity of the nose is black, like that of the dog. The mane, from which he derives his scientific name, is not very remarkable: it consists of a series of longer, crisper, and more upright hairs, which extend along the back of the neck and the anterior portion of the spine.
    Each of these grand divisions has been subdivided into several minor groups or genera; but zoologists have hitherto been by no means unanimous with respect to the principles on which this subdivision ought to be effected. The arrangement which appears to be most generally adopted at the present day is that of M. Cuvier and M. Geoffroy-Saint-Hilaire, which is essentially founded on the application of an imaginary rule, first employed by Camper for ascertaining the degree of intelligence, and consequently of ideal beauty, expressed by the human face in its various gradations of elevation or debasement, and called by him the facial angle. Unfortunately, however, the operations of nature in the animal creation can never be subjected to geometrical laws; nor can her innumerable phases be expressed with the precision of a mathematical theorem. This assumed point of comparison varies almost indefinitely, not merely in different species, but even in the same individual; and the Oran-Otang himself, who is supposed to approach most nearly to the human form, offers the most striking illustration of the truth of this observation; inasmuch as in his young and intellectual state his facial angle is equal to 65°, while in his aged and debased condition, in which he has actually been repeatedly described as a different animal under the name of Pongo, it sinks below 30°; degrading him even beneath the level of the most savage and stupid of the Baboons.

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