Читать книгу The Courtship of Animals - W. P. Pycraft - Страница 6

The greater physical strength of the male and his higher brain capacity are probably the result of Natural, rather than of Sexual Selection. The former would weed out all the weakly and dull-witted in the ordinary course of the struggle for existence, the latter, during the early days of man’s development, would award the prizes of life to the most amorous and cunning, and to the most ambitious of the competitors.

The secondary sexual characters of the female are chiefly negative characters, the absence of those which are conspicuous in the male. She retains more of the primitive characters of the race. This is the rule in regard to the animal kingdom. Wherever we desire to find the onward tendency of evolution, the latest developments of the race, we turn to the male; when we desire to learn something of the past history of the species we turn to the female and young. This standard, of course, yields by no means uniform results, for we find every gradation of progress on the part of the latter, till male and female and young are externally indistinguishable. But the order is almost invariably the same—first the male, then the female, then the young. Thus progress is more or less automatic or “Orthogenic,” as the scientific text books have it, new characters, as they appear, tending to go on increasing in amplitude till checked by Natural selection. It is to be noted, however, that this transference is limited, for the female never inherits characters which are concerned with aggressiveness to the same degree as in the males, as witness, for example, the brow-ridges and huge canines in the case of the gorilla.

Darwin believed that the beards of men have developed by the selective choice of the women who preferred bearded men, while the secondary sexual characters of the women indicate the lines of male choice. There is, however, no evidence to show that in the past—for these characters are as old as man himself—woman had any choice whatever in the choice of her mate, save under exceptional circumstances. He was led to this conclusion by one or two striking instances apparently demonstrating this choice, and on these he seems to have based his version of the influence of sexual selection in man. The first of them is furnished by the Hottentots wherein, in both sexes, there is a marked “Steatopygy,” or accumulation of fat on the buttocks. In the female this is excessively developed, and it is said that such females are highly prized by the males. Darwin cites an instance of a woman in which this accumulation was so enormous, that she could only rise with the greatest difficulty from a sitting position. But there is no evidence to show that less favoured females remained unmarried.

In other tribes the breasts attain excessive proportions, so much so that they can be slung over the shoulder to feed the infant strapped to her back. These may have been increased by sexual selection, the preference of the males for such mates as possessed this feature in the most marked degree; but there is good reason to believe that such characters, which, it must be remembered, are the outward manifestation of germinal variations, once having appeared, would of themselves, of their own inherent vitality, have gone on developing. They won favour from long familiarity, which has imparted a semblance of increment from choice. These increments of growth in any given generation would be imperceptible, but variations in excess of the average would be conspicuous, and excite admiration from their very strangeness.

The part which sexual selection has played in determining the physical characters of the human race has without doubt been overestimated. Its influence may be said to have ceased with the development of the emotional side of his nature. This momentous process began with the male and had its roots in the ebullitions of his inherently amorous nature which has been the dominating factor in his career, and will be to the end, however much its influence may be disguised by the complex conditions of civilization.

These emotions, varying in kind and intensity, are such as are embraced in the term “Love” in the highest sense. They control the selection of mates, but this selection takes no account, save by accident, of qualities which have any value as factors of race-survival. In the lower animals these are determined by natural selection, and sexual selection adopts as it were the material furnished thereby. It “selects” only in so far as it eliminates the non-sexually inclined, and those which lack the qualities essential to ensure reproduction, such as weapons for example. In human communities natural selection is largely avoided, and “mate-hunger” seems now to be swayed by more than the mere desire for its satisfaction. With the development of human faculty new factors have been introduced, complex emotions have come into being, whose influences are as yet only vaguely understood. Whither are they tending? What will be their effect on race-progress? These are matters of grave importance to us all, and to the student of Eugenics in particular.

Of man’s higher emotions, which, it is contended, now govern his conduct, probably the earliest to assert itself was the æsthetic. His quickening mentality could not fail to be captivated by the bright hues of birds and butterflies, and flowers, the glorious colour-effects of dawn and sunset, the seasons in their changes and so forth. And as this sense of the beautiful slowly gathered force he would seek to decorate his naked body with such of the more brightly-coloured objects around him as were suitable or rather with such as could be affixed thereto.

As a signal mark of his favour and affection, he would occasionally transfer some one, or another, of his most lasting ornaments to his mate, and the additional charm this would give her ensured a continuance of such gifts, and paved the way for tribal fashions. But then, as now among savages, the males take the lead in this matter of ornamentation, but in proportion as affection grows, they are transferred from him to her, so that among civilized races to-day, the custom is entirely reversed, the women, not the men, wearing the finery. So soon as families began to be neighbourly and to combine for the sake of company and mutual help, the spirit of rivalry, so essential to progress everywhere, would tend to increase the number of such gifts, and to set “fashions.” With the foundation of society “selection”—by the elimination of the unsocial, would ensure, not only the survival of such fashions, but their multiplication and diversification, producing results which, to our eyes, have often been hideous. The immediate effect of this form of selection, however, was not a change in physical characteristics, but in the evolution of personal ornaments and development of the æsthetic sense. Progress in this direction must have been infinitely slow, and the lower races of to-day furnish us with instructive object-lessons in its course. In many cases uglification rather than refinement has attended their efforts.

It is indeed more than probable that the various types of ornamentation obtaining among savage races had their origin in outbursts of sexual exaltation. One of the earliest methods of personal decoration was probably to daub the body with paint, as is the custom during the performance of various religious and semi-religious rites among the Australian aborigines. A desire to find a permanent substitute for paint led to the practice of cicatrization, and the later and more refined custom of tattooing. But personal mutilation has taken many and strange forms, such as knocking out the front teeth, filing them to saw-like points, inserting gold or jewels, or staining them. No less extraordinary are the various types of lip and ear ornaments, and the suspension of ornaments from the nose. The various fashions of dressing the hair are also traceable to this origin.

That these modes of personal decoration designed for special occasions should in course of time become permanent, and should, in many cases, have lost their original associations is but natural. To-day among savage and barbaric races many of these modes of transfiguration have become associated with religious and semi-religious ceremonies, but many have been retained solely to enhance the personal appearance, even though in our eyes an exactly opposite effect has been attained. Among the natives of the Congo, for instance, the face is covered with raised patterns formed by cicatrization; that is to say, by cuts made with a knife, which are made to form scars on healing by means of pungent juices or heated iron. Further, the teeth are filed to form saw-like cutting edges, producing a revolting effect according to European ideals, but charming according to the standards of those thus patterns which adorn the tattooed face of the Maori present a result more nearly pleasing. Many of the natives of East Africa pierce the lobes of the ear and hang ornaments therein so heavy, that in due course a hole large enough to run the arm through results. These are mutilations of a purely ornamental character. Curiously enough, precisely similar forms of mutilation occur among people dwelling in different continents, as in the case of the lip and ear ornaments worn by natives of Africa and South America. There can have been no means of communication between these races, and hence we must conclude they were independently derived.

More striking still is the practice of deforming the head which prevailed among the Peruvians, the Caribs of the West Indies, and the natives of Vancouver, and the Chinook Indians, wherein it attained its maximum. Among some tribes, the head was depressed from above downwards, giving the skull a cone-shape, the apex pointing backwards; among others the pressure was applied to the back and front of the head, giving a more or less globular shape, and causing the sides of the head to bulge ominously. Now these distortions are to be attributed solely to the whim of Fashion. But how could this have arisen? No adult could have started it, for the form of the skull cannot be altered once its growth is completed. The conception of this diabolical custom apparently then arose in the brain of some fiendishly ingenious person, who realized that to effect its realization pressure must be applied to the head of the infant at its birth and for some considerable time after, by squeezing the head between boards, or tying it round with thongs of hide. That disastrous results would follow from this tampering with the brain would seem an unavoidable conclusion; yet such was not the case. During the moulding process, travellers who have witnessed it tell us, children display no sign of suffering, even though their eyes seemed to be starting from their sockets from the pressure. But they cried when the thongs were loosened. On attaining to man’s estate, such victims to parental folly seemed to be in every way as intelligent as the men of neighbouring tribes which had no such insane customs.

How deeply rooted was the prejudice in favour of this extraordinary fashion is shown by the fact that when, during infancy, from sickness, or other cause, the bandaging was neglected or omitted, and the child, in consequence, attained to man’s estate with a head of the shape designed by nature, he was seriously hampered in the struggle for existence, for no honours among his tribe were possible. Indeed, as often as not he was sold as a slave. But thus did Public Opinion bring disaster on its advocates, for those misguided people have been swept off the face of the earth by their own folly. Those who survived the ordeal, it is true, seemed in no way mentally deficient, but the infant mortality must have been great, and none of the adults could ever have attained to their full potentiality.

These people were, however, not the only lunatics at large. For this extraordinary practice found its devotees in many other widely sundered parts of the world. Deformed heads of various types have been found in rock-tombs near Tiflis, in the Crimea, Hungary, Silesia, in South Germany, Switzerland, and even in France, Belgium and England! How did it spread from one nation to another? Since means of communication were extremely limited centuries ago, one can only suppose that in most cases it arose independently. It is possible that the idea started with the unintentional deformations of the head which follow the practice of carrying the child during early infancy. It is well known that if a child be constantly carried on one arm, so that one side of the head continuously presses against the shoulder, a more or less marked asymmetry of the skull results. It would be enough for the head of one of the chief’s children to show a rather unusually marked asymmetry of this kind for every mother to endeavour to copy the defect, for imitation ever was the sincerest form of flattery!

To place these superficial, non-transmissible, artificially created features, such as deformed heads, mutilated teeth and ears, and so on, in the same category as the “secondary sexual characters” of the lower animals which are physical, inherent and transmissible features, is to ensure confusion of thought. The one represents a physical, the other an emotional development. The persistence of certain forms of mutilation esteemed beautiful in human society is not to be attributed to Sexual selection, or to “preferential mating,” for these things are not only non-transmissible features, but outside the sway of the amorous instincts, as is shown by the case of those individuals who, living in a community where deformed heads are de rigueur, have heads of normal shape. So soon as such perversions become a part and parcel of everyday life, they become essential to the general well-being and comfort of their possessors, enabling them to follow their normal avocations without exciting the dislike or wounding the prejudices of their neighbours. The absence of the “tribal sign” alienates the esteem and comradeship of his neighbours and brings an unenviable notoriety. In like manner albinos among birds, for example, are hunted down by their fellows and killed, and birds of exotic species conspicuous by reason of their unfamiliar appearance are treated in the same manner. The sexual instincts have no part in this.

It will have become obvious in the course of this chapter that Sexual selection as a factor in shaping the evolution of the human race has not played a very conspicuous part. Nevertheless, the balance of opinion to-day is probably in favour of the view that the physical peculiarities by which we distinguish one race from another are, for the most part, due to the influence of this form of selection. A more careful survey of the facts will show that this view is untenable. And there is no more striking demonstration thereof than that it has been inconsequently applied to account for features in one race, which in another are attributed to environment or to Natural Selection. It may safely be asserted that colour, the shape of the nose, the prominence of the jaws, and the character of the hair, are no more the result of “Sexual Selection” than stature, for example. These are the manifestations of inherent growth forces, or “tendencies,” which owe their survival, and development, to the influence of Natural selection.

Sexual selection has brought about the dominance of the male, by the struggle between males for mastery, originally for females. It “selected” for survival, in primitive races, those males with the thickest skulls and the strongest physique; it determined the survival of the keenest witted and most aggressive and most amorous males, and it eliminated those in which the latter features were too active. It assured victory, in short, to those only who possessed just those qualities on which life or death depend in moments of conflict. In the case of the females, it assured survival only to those who possessed strongly developed maternal instincts and submissiveness.

It is by no means realized that the incidence of moulding forces has changed and is changing with the environment of the race. So long as physical force, as between man and man, determined survival, as among savage races to-day, so long does it ensure to such races strong men and strong children, for in conflict with neighbouring tribes victory rests with the most powerful of physique and endurance and the most prolific. This last is an all-important concomitant if repeated conflicts are to be successfully waged. Among civilized peoples such contests began to lose their value in this regard when, by the introduction of arms, physical personality became a steadily diminishing factor. Victory now rests rather with those peoples who are most skilful in devising engines of destruction. The brain, not brawn, tells. But man cannot live by brains alone. With the inevitable decline in his physical nature man’s hold on existence is seriously imperilled. Civilization is making for extinction as much as over-specialization in the case of the lower animals. Hitherto, save in the case of decaying nations, women have played but a minor part in what we may call the “tribal” affairs of the race. Among the civilized nations of to-day, in proportion as the “maleness” of the community becomes more and more effete, the victims of sophistry, and the slaves of shibboleths, so the influence of the females asserts itself. And recent events among us show plainly enough that that influence is the reverse of good. Having its roots in personal vanity, and the love of notoriety, it is intolerant alike of reason and self-restraint, and that way madness lies.