THE FIXING OF THE PARENTAL1 INSTINCT IN THE MOTHER
“The universe throbs2 with restless change. Everything that we know is becoming rather than being.”—P. Chalmers Mitchell
One of the difficulties that has met me in my studies of the family among the animals is that, as we ascend3 the scale of life, there is a moral retrogression in fatherhood—at least, that is how it appears to me. There are, as far as I have found, no examples among mammals, the highest and last group of the animal kingdom, of devoted4 fathers undertaking5 the sole charge of the young, and few where the father even shares with the mother to any extent in the work connected with the upbringing of the family. The egoistic desires seem to increase in the males, with a corresponding weakening of their interest in the family and willingness to participate in its duties. The young are carried by the mother alone, they are protected chiefly by her; the father takes no part in the nursery cares, and rarely does he help in providing food for the children. The family is maternal6, the female—the mother—its centre; the male is bound sexually to the female, but apart from this his connection with the family is slight; we find him most frequently following personal interests.
In contrast with the conduct of the fathers in the families we have so far examined among the birds, reptiles8, fishes and insects, with whom the father’s solicitude9 and[118] sacrifice for the young equals and, in some cases, rivals that of the mother, this complete paternal10 indifference11 is really very startling. It demands our attention.
What factors have brought about this reversal, which at first sight appears so strange? Why is it that the parental instinct diminishes in the father and is now fixed12 in the mother? It is, however, easy to understand this change if we consider what now happens, and the changed conditions under which the young are born. The mammals do not lay eggs like bird and reptile7 mothers, but each mother retains the eggs within her body, and so secures for the young warmth and protection far more certainly than would be possible in the best-contrived nest or home.[47] But this has led to changed habits. No nest or brooding-home has to be made, and the same preparations for the family, which hitherto have united in work the father with the mother, are unnecessary. Again, food has not now to the same extent to be collected and stored in readiness for the future needs of the children. The embryo13, living within the body of its mother, gains the food for its growth directly from her blood. The connection between mother and child now is closer; her condition and health become of direct importance for the welfare of the young. At the same time the importance of the father is sharply lessened15. This is plain. The early stages of mother-care, instead of being conscious and external acts regulated by special circumstances and often modified to meet different needs, now become part of the unconscious functions of the body of the mother—the child is an extension of herself. The advantage to the offspring of this[119] change from external to internal protection is great, in the added safety thereby16 gained from fixed functions over the habits that might be slurred17 over, bungled18 or forgotten. I think, however, that there is a corresponding loss—that parenthood becomes more possibly irresponsible and, at the same time, individualism becomes stronger. Birth, with narrowed opportunity for intelligent adaptation, is more of an unconsidered incident; I mean that before it occurs it demands much less from the parents in sacrifice and in work. This is certainly the case with the father, whose part in gaining offspring is reduced to a single momentary19 act, and one, moreover, that is prompted by the fiercest egoistic desire.
But I think, too, there is a deterioration20, though much less in degree, in the quality of motherhood. The preparation made for the birth of her children by the mammal mother is very slight, indeed, in many cases the mother appears to be unaware21 of the approaching event until the actual birth begins. Here is an account of a langur monkey, whose first baby was born in the London Zoological Gardens, at which event the mother seemed to be utterly22 surprised. The birth took place at night, and the mother, from the marks in the cage, must have dragged up and down the new, astonishing object. But by the morning she had grown accustomed to the baby, and held it pressed closely to her breast, from time to time thrusting the head outwards23 and eagerly looking at it. For several weeks the baby never left her, and she showed endless curiosity and pleasure in it, ceaselessly examining it, turning it over, stroking it and keeping it clean with her hands. She was jealous of visitors, and when they came near to the cage she would turn round so as to hide the baby from[120] them. The father, in case of accidents, had been taken away and put in the adjoining cage, which was shut off by a piece of canvas. He made a hole in this, and from time to time, especially when the mother or baby made any noise, he would raise the torn flap and peep through.[48]
It must be remembered that among the mammals it is the rule for the young to be suckled by the mother, a mode of feeding already foreshadowed by many bird parents and some insects. But with them the special nursery food is prepared from their own food by incessant24 work, undertaken, as a rule, by both parents. The act of suckling, on the other hand, occurs without conscious work, and is a function in which the father has no concern whatever.
I have no facts to trace the steps whereby this function of maternal feeding was developed and established, but I would suggest that, apart from the advantage to the young of a special diet, the immense labour entailed25 on the parents in obtaining food—the foraging26 over wide areas and the carrying of the provisions back to the nursery—made it a question of economy; and that the mother, as more usually being with the young, was the parent who came without conscious effort to prepare for them in her body this early nourishment27.
It is plain that the bond between the mother and offspring would be greatly strengthened; they would be dependent upon her alone, and drawing life from her body, she would become increasingly conscious of them during a much longer period. The emotional quality of affection really develops now. The suckling is a continuation[121] of the organic relation by which the child is born of the mother’s body; now the child exists through her, and becomes, so to speak, a habit which grows up out of her own individuality. I lay stress upon this fact: the maternal feeding is the beginning of a new period in the growth of motherhood, and is the foundation of the indestructible bond between mother and child.
We see, then, the reasons for the curious and sudden deterioration in fatherhood; the father has, as it were, been pushed out of his earlier position of service. Now that there is no nursery to be built, and the mother is the sole feeder of the young during their period of greatest helplessness, the father loses his interest in the family. Our interests and our habits are fixed by whatever occupies our attention. Freed from the first and most important care of the young, the male is severed28 from the family and its duties, and his attention, thus set free, turns in new directions and centres upon himself. In this connection we have, I would suggest, an explanation of the greater variability of the male as well as of his more violent passions. Instead of a working partner with the mother, sharing in her sacrifice for the welfare of the family, he is a member apart; he grows larger than the female, becomes masterful, pugnacious29, jealous of her and of the young: a fighting, egoistic specialisation. He is still attached to the female, but he seeks her to satisfy his sexual needs, he less frequently remains30 with her as a domestic partner, relieving her in connection with the rearing of the young.[49]
[122]
This is the general condition among the mammals. It is the rule that the young are tended by the mother during the period of their youth. At birth they are usually helpless, and often are born before the eyelids31 have opened and while the body is yet naked, or but scantily32 clothed. But there are degrees of helplessness, determined33, it would seem, by the conditions of the environment and habits of the parents. The maternal care is greater or less in accordance with the needs of the young. The period of youth is much longer, and increases as we ascend in the scale of life. The great apes, for instance—the gorilla34, the orang and the chimpanzee—take from eight to twelve years to grow up, while baboons35 and common monkeys take from three to eight years, and the little South American monkeys and lemurs two to three years.[50] In connection with this longer childhood we find an increased mental growth; the years of youth are the time in which the brain cells increase in size and co-ordinate with the rest of the body. And the longer the period of youth the more perfect is the brain. Thus the helplessness of the young stands in direct relation to the increased vitality36 shown by the adults. It is also the strongest factor in developing and fixing the maternal instincts.
The young do not leave their mother until they are well ready to start life on their own account; then they are thrown into the world. Till then they are cared for. Freed of any duty of finding food, and very seldom having to defend themselves, they have time to experiment and learn from experience. The instincts in this way become educated, their rigidity37 is destroyed, and more and more they are controlled by memory and experience—the stored-up[123] results of experiment. The purpose of youth is to give time for this.
The number of the young is now very greatly reduced, and the small families are protected by the mothers, in some cases assisted by the fathers. The maintenance of the species by the production of enormous families has ceased. Some of the small rodents38, it is true, breed several times in the course of the year, and there are other fecund39 mammals, such as pigs, which give birth to many young in one litter. But these are rare exceptions. The usual number of young is two or three at a birth, and the higher in the scale of mammalian life the smaller is the family.[51]
There is a fact that must be noted40 here. A curious perverted41 instinct is not uncommon42 among mammal mothers, though rare with the monkeys. In the first day or two after birth a mother will kill and eat her young. I had a bitch who once did this: the first time she had a family she ate all her puppies in the first night; afterwards (I mean when for a second time she had puppies) she was a good and fond mother. I think this habit of maternal infanticide must be connected with that change, of which I have spoken, whereby the early stages of brood-care are carried on without the direct consciousness of the mother. The children do not enter into her experience because she has not had to work for them. She eats them as she would eat any other helpless thing. In a carnivorous mother especially this habit is not surprising; it happens almost always with young and inexperienced mothers. And I think it shows that maternal care is not so instinctive43 as we are led to believe, but is the result of, and directly dependent upon habit and the attention being fixed on the family.
[124]
In all the carnivores the young are born helpless, usually blind, though new-born lions can see; they remain with their mother for a period varying from a few weeks with the smaller creatures to even more than a year. Sometimes the father stays loosely attached to the family. The large predaceous creatures cover great distances in search of prey44. There is, however, a stationary45 home lair46 in a well-concealed place, to which the mother always returns with food. She takes scrupulous47 care to keep the nursery clean, and she carefully looks to the needs of her young family, licking them with her tongue, until they are old enough to perform their own toilet or lick and clean each other. Before they are weaned they are allowed to scrape off fragments of flesh from the mother’s food, so that they may become accustomed to their future food. At the same time they are taught the elements of stalking, in play-lessons with the mother’s tail and paws. Later they are taken out by the mother, sometimes by both parents, on foraging expeditions. Family parties of lions, for instance, often have been seen by African hunters.
The fathers do little for the young families. Sometimes they afford protection in fighting and driving off enemies; it is important, however, to note that this service to the family seems to be prompted by jealousy49 and aggression50, and must be considered as an expression of the egoistic instincts rather than connected with parental solicitude.
Among the mammals polygamy is frequent, and there are cases of the most brutal51 promiscuity52, where the males and females unite and separate at chance meetings, without any care for the family arising in the mind of the male. Polygamous unions are especially common among species with sociable53 habits who live in hordes54. Sociability55 probably[125] arises through individual weakness. Animals that are badly armed for fierce combats, and that have, besides, difficulty in obtaining food are glad to live in association. Thus the ruminants live in hordes or polygamous groups, composed of females and young subject to a male who protects them, expelling his rivals, and being a veritable chief of a band.[52]
The conditions of the nursery and early life of the young are changed necessarily by these different habits. In the first place, the ruminants are wanderers, and travel long distances in search of food and water. Thus there is no permanent home and no nursery, and the mothers make no preparation beforehand for the young. They retire for a few minutes to a thicket56, where they drop the calves57 or lambs. Families are small, and one is the usual number at a birth. The young are not born helpless, as is the case among the young carnivores where there is a settled nursery, but are clothed, have their eyes open, and their senses are very alert. In a very short time, almost as soon as their mother has licked them clean, they are ready to follow her; and they join the herd58, if the animals are gregarious59. The mothers show marked affection to the young, but it would seem to be the business of the young one rather to follow and stick to the mother than for the mother, as amongst the carnivores, to take the lead in the affections. There is no real training of the young by the mother. Sometimes, if there is a herd, the males will combine to defend the group of the females and their young; but more frequently there is a family party, consisting of one or possibly two males, with their several wives and children.[53]
[126]
Many different animals live in this manner in familial groups. The moufflons of Europe and of the Atlas60, for instance, form polygamous social groups in the breeding season.[54] Among the walrus61, the male, who is of a very jealous temperament62, collects around him from thirty to forty females, making altogether a polygamous family sometimes amounting to a hundred and twenty individuals.[55] Again, the male of the Asiatic antelope63 is inordinately64 polygamous; he expels all his rivals, and forms a harem numbering sometimes a hundred females. It should be noted that polygamic régime does not appear to lessen14 the affectionate sentiment in the females towards their tyrant65 lord. There are many examples of the most oppressed females being faithful wives. And so much is this so that the conclusion is almost forced upon us that the female animal likes servitude.[56]
There is a wide range in the form of sexual association practised by different species. The carnivorous animals, as a rule, live in couples; this is done, for example, by bears, weasels and whales. But this is not an absolute rule, for the South African lion is a polygamist, and is usually accompanied by four or five females.[57] Sometimes species that are very nearly allied66 have different conjugal67 customs; thus the white-cheeked peccary lives in social groups, while the white-ringed peccary lives in couples.[58]
Permanent unions are formed, especially among the[127] anthropoid68 apes. Thus strictly69 monogamous marriages are frequent among gorillas70 and orang-utans, and any approach to loose behaviour on the part of the wife is severely71 punished by the husband.[59] The ouanderoo (Macaque silenus) of India has only one female, and is faithful to her till death.[60]
But polygamy is frequent. Savage72 tells us that the Gorilla guia, for instance, forms small hordes, consisting of a single adult male, who is the despotic master of many females and a certain number of the young. We find both the matrichate and the patrichate family; but whatever the form of sexual relationship practised, the father has always much less affection for the young than the mother. Among the mammals this is universal.
The females among the mammals being smaller and less powerful than the males, no sexual association comparable to polyandry is possible. Yet in justice it must be noted that the desire for sexual variety is not always confined to the males. A female will sometimes take advantage of the moment when the attention of her lord and master is entirely73 absorbed by the anxiety of a fight to run off with a young male. Even among species noted for their conjugal fidelity74 this will happen. The male animal has no monopoly in sexual sins.[61]
The polygamous families of monkeys are always subject to patriarchal rule. The father is the tyrant of the band—an egoist, who spends his time in fighting and in love adventures. Any protection he gives to his wives is[128] in his own interest and to keep them bound to himself. He neither makes the home nor feeds the young. Often he is a disturber of the family peace. He will, on occasion, show jealousy of his own sons, whom he expels from the band as soon as they are old enough to give him trouble; his daughters, in some cases, he adds to his harem.
Even in monogamous species, where the male keeps with the female, he does so more as chief than as father. He takes little interest in the nursery. At times he is much inclined to commit infanticide and to destroy the offspring which, by absorbing the attention of his partner, thwart75 his amours. Thus among the large felines76 the mother often is obliged to hide her young ones from the male when he stays with her, in order to prevent his devouring77 them.[62]
Again, among the even-toed ungulates (pigs, peccaries and hippopotami) we find marked maternal affection and care. Little pigs are feeble at birth, and are sedulously78 guarded by their mother. A hippopotamus79 baby (the family usually consists of one only) stays with its mother for a long time, probably several years, and when the mother goes to and fro to the water to feed, the little one rides on her back. The fathers take no notice at all of the young. The odd-toed ungulates (horses, asses80 and zebras, and the tapirs and rhinoceroses) live in herds81. The young are active soon after birth and able to follow their mothers, who have great affection for them. The males will protect the females and young when the herd is attacked if a fight is unavoidable, but they prefer to seek[129] safety in flight. The fathers do not appear to have any affection for the young.[63]
Among the numerous classes of rodents, where the young are born naked, blind and helpless, the whole duty of their upbringing is undertaken by the mother. “I do not know of any instance,” states Mr. P. Chalmers Mitchell, “in which the male takes care of the young; generally they either neglect them altogether, or attack them and persecute82 them.”
From such pictures as these the position of the father in the family will readily be seen. No longer bound by domestic ties to the young, he knows no duty to the family except the rule of jealous ownership. How complete is the change in the family organisation83. How sharp is the contrast between these indifferent males, jealous and fighting, and the devoted fathers among the birds, fishes, reptiles and insects, uniting with the mothers as working partners in the home-making, food-providing, and all the care of the young. The father is now alone—separated from the family, banded with other males. And do you not see how this change, and the indifference of the males to any interests but their own, have forced the mothers into closer union with the family? The male strength, the gorgeous display of sex-charms, the fierce fighting for prey and for love, are now markedly developed. But this polygamous jealousy and egoism acts really for the advantage of the females. It is the egoistic male conduct that forces altruism84 upon them. I attach great importance to this. I maintain that the forcing out of the father from his service and earlier important position of a worker in the circle of the family served as a means to the end of[130] deepening and fixing the maternal instinct in the mothers. What was lost for fatherhood was gained for motherhood. Self-sacrifice became once and for ever the supreme85 joy and privilege of the female.
We have found the clue we were seeking.
Further than this I must not go. The first part of my inquiry86 has come to an end. There is little more that I need to say. It may seem to the reader that the animal family, in a book written to establish the duties and rights of human motherhood, has received too much attention. To those who hold this view I can say only that I do not agree with them. In forethought and sacrifice for the well-being87 of the young—the devotion of the father as well as of the mother—these pre-human parents do not yield precedence to many human families. They deserve our attentive88 study. But I have no hope, nor much desire, to convince those of an opposite opinion, who hold that we are so much higher and different from the animals that we can learn nothing from them. To all such I would recommend again that they leave this section of my book unread.
There is, however, another objection that may be raised. It may be thought that too much stress has been laid on the father and his connection with the family, that my choice of illustrations has been biased89, and cases taken in which the father’s devotion is unusually prominent. This I have done. And I have done it of fixed purpose. In the first place, I desired to prove the error in the common opinion that the parental instinct has at all times been the endowment of the female, stronger in her than in the male.[131] I wanted it to be known that in the beginning of the family the father was as true a parent as the mother, his devotion sometimes being greater than hers. Then, secondly90, I hoped, by means of the insight that the many and great changes in the past conditions of the family afford us, to establish the close connection which does at all times exist between parental devotion and the duties performed in feeding and caring for the young. The parent who sacrifices most is the parent who loves most. Some of the suggestions I have made may be more or less open to question, but not a few, I think, are true in the light of the facts that cannot be questioned. I am fully48 aware of the omissions91 and inadequacy92 of my summary; probably I have made mistakes. I think this could not have been prevented. Much ground had to be covered. The illustrations I have been able to give of each stage in the history of parenthood are few, compared with the rich number that might be studied. I have made no attempt at completeness, nor have I tried to set up any exact order of behaviour. Life is too full of surprises for such arbitrary theories. I have, however, tried to make clear certain ideas that have forced themselves very strongly upon my attention during my own studies.
We have seen the maternal instinct in the making, and we have come to understand the strong force of this impulse, which finds its expression in so many diverse ways. There is much that we cannot understand. But this is largely because we know so little. We have, I hope, gained a clearer view; we have learnt many things that may cast forward suggestions for the solving of our own sexual, domestic and social relationships. The facts which I have recorded are, I trust, sufficient for this purpose: I[132] hold that the following general conclusions may be drawn93 from them—
Regarding the care of the young as the moving force in developing the intelligence of the parents, I have accepted the truth, which it is the chief purpose of my book to make plain, that the individual exists for the race. Other personal things may be important, they may be profoundly important, but they are not primary—not one with the forces that do not change. The individual is primarily the host and servant of the seed of life. Birth is the essential fact underlying94 all experience.
From this service to the future arises the family and the home. And with the appearance of the family, new habits are necessarily formed, and these act in developing the higher sides of mental and emotional life. Co-operation, friendship and love which is not sexual attraction find their first beginnings in the limiting by the parents of their desire to look after themselves, to satisfy their own appetites and provide for their own needs. The mere95 toleration of the young is the start in a new life. There follows a mutual96 joining in work with the necessity and opportunity of modifying instinct by practice. In this way a direct push forward is given for the development of intelligent conduct. An immense advance, then, is gained from the association of the young with the old in the family tie.
In the cases we have examined, we have seen that the same end is not gained always in the same way. Nature has no fixed rule for the family. The contrasts and paradoxes97 of animal family life are numerous. We have watched the development of the parental intelligence in many family groups; we have seen that there is no fixed[133] order in the relations which exist between parents and offspring. All arrangements are good on the one condition that they succeed in serving the family and preserving its life.
To produce large families, making little provision for them, is a wasteful98 and improvident99 way of maintaining life. This spendthrift fashion of reproduction was the early method. To limit the number of the family and to cherish and protect the young, not throwing them upon the world until they are well fitted to make a brave fight against its dangers, is the later, wiser and safer way. We have noted devices of this kind in each group of the animal kingdom, but parental care becomes more and more complete as the scale of life is ascended100. Not only are the numbers in the family reduced, but the period of youth becomes longer. The protected young are permitted a longer time in which they have the opportunity of learning to live.
The importance of the form of union or marriage between the parents and of the kind of home must be considered. We have found that polygamous fathers and polyandrous mothers care little for the young. The withdrawal101 of the interest and care of either parent is a source of weakness which can be compensated102 only by an added devotion on the part of the remaining parent.
We have noted the withdrawal of the father from active work for the family. This came with the greater importance of the mother, which itself was not the result of any conscious act. It was a necessary step, following the change from external to internal protection, whereby the young are retained within the body of the mother. Animal parents do not teach us that mothers are always[134] more devoted and self-sacrificing than fathers. Sometimes, indeed, the contrary would appear to be true. Even the mother’s instinct to protect and serve the young, which seems to increase as we ascend the scale towards human parentage, must, I think, be regarded as an extended egoism. Formed in her body and fed from her sustenance103, the young are a part of her individuality, and her solicitude for them is but a wider caring for herself.
There are many surprises in animal parenthood. The conduct of the parents may vary within very wide limits, and all kinds of devices are employed by different parents to ensure the well-being of the family. Solicitude and sacrifice for the young are common, but indifference also occurs; and there are unnatural104 parents of both sexes who shirk family duties. We have found, indeed, the suggestion of all the virtues105 of human parents as well as many of their sins, every form of devotion and intelligent parenthood as well as examples of folly106 and neglect.
We have observed the greatest difference in particular in the conduct of the father as regards his participation107 in the work of building the home and in feeding and rearing the young. Thereby we have learnt that a psychic108 metamorphosis of the male may occur, causing him to fulfil the duties of the mother, and that accompanying this is an alteration109 in the character of the female which completely transforms her sexual nature.
An attempt was made to solve this riddle110 of sex. It seems probable that changes in function, by which is meant changes in the form of union and conditions of the family—as when one sex, for some reason or other, performs the duties usually undertaken by the other sex—may profoundly alter the sexual nature of the individual and[135] modify the differences which tend to thrust the sexes apart. We cannot know with any certainty. Yet I can see no other interpretation111 of these curious instances of sexual transformation112, and, if I mistake not, it may be possible in this way to cast a light on one of the most difficult problems with which we are faced to-day.
I have asserted again and again that the strength of the parental instinct is dependent directly on the opportunities for its expression; which is to say that the parent who tends and feeds the young is the parent who loves the young. We may go further than this. There is no such thing as instinctive motherhood. The emotional quality of affection comes later than the birth of offspring, and is not dependent on any instinctive feeling in the mother. It is the consequence and not the cause of parental care. So true it is that sacrifice and forgetfulness of self is the basis of affection.
The most important result that we have gained from our inquiry is a knowledge of the close connection which exists between the care of the young and the character and conduct of the parents. You will see what this implies. The essential fact for the male and the female—for the mother and also for the father—is a development of responsibility in fulfilling duties to the family. Neither sex can keep a position apart from parenthood. Just in so far as the mother and the father attain113 to consciousness and intelligent sacrifice in their relation to their offspring do they attain individual intelligence, development and joy. To me, at least, this is the truth that stands out as the lesson to be learnt from these pre-human parents.
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parental
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| adj.父母的；父的；母的 | |
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throbs
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| 体内的跳动( throb的名词复数 ) | |
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ascend
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| vi.渐渐上升，升高；vt.攀登，登上 | |
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devoted
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| adj.忠诚的，忠实的，热心的，献身于...的 | |
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undertaking
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| n.保证，许诺，事业 | |
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maternal
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| adj.母亲的，母亲般的，母系的，母方的 | |
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reptile
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| n.爬行动物；两栖动物 | |
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reptiles
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| n.爬行动物，爬虫( reptile的名词复数 ) | |
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solicitude
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| n.焦虑 | |
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paternal
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| adj.父亲的，像父亲的，父系的，父方的 | |
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indifference
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| n.不感兴趣，不关心，冷淡，不在乎 | |
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fixed
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| adj.固定的，不变的，准备好的；(计算机)固定的 | |
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embryo
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| n.胚胎，萌芽的事物 | |
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lessen
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| vt.减少，减轻；缩小 | |
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lessened
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| 减少的，减弱的 | |
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thereby
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| adv.因此，从而 | |
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slurred
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| 含糊地说出( slur的过去式和过去分词 )； 含糊地发…的声； 侮辱； 连唱 | |
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bungled
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| v.搞糟，完不成( bungle的过去式和过去分词 )；笨手笨脚地做；失败；完不成 | |
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momentary
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| adj.片刻的，瞬息的；短暂的 | |
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deterioration
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| n.退化；恶化；变坏 | |
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unaware
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| a.不知道的，未意识到的 | |
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utterly
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| adv.完全地，绝对地 | |
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outwards
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| adj.外面的，公开的，向外的；adv.向外；n.外形 | |
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24
incessant
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| adj.不停的，连续的 | |
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entailed
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| 使…成为必要( entail的过去式和过去分词 )； 需要； 限定继承； 使必需 | |
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26
foraging
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| v.搜寻（食物），尤指动物觅（食）( forage的现在分词 )；（尤指用手）搜寻（东西） | |
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27
nourishment
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| n.食物，营养品；营养情况 | |
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28
severed
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| v.切断，断绝( sever的过去式和过去分词 )；断，裂 | |
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pugnacious
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| adj.好斗的 | |
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30
remains
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| n.剩余物，残留物；遗体，遗迹 | |
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31
eyelids
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| n.眼睑( eyelid的名词复数 )；眼睛也不眨一下；不露声色；面不改色 | |
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32
scantily
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| adv.缺乏地；不充足地；吝啬地；狭窄地 | |
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determined
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| adj.坚定的；有决心的 | |
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34
gorilla
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| n.大猩猩，暴徒，打手 | |
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35
baboons
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| n.狒狒( baboon的名词复数 ) | |
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36
vitality
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| n.活力，生命力，效力 | |
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37
rigidity
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| adj.钢性，坚硬 | |
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38
rodents
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| n.啮齿目动物( rodent的名词复数 ) | |
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39
fecund
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| adj.多产的，丰饶的，肥沃的 | |
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40
noted
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| adj.著名的，知名的 | |
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41
perverted
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| adj.不正当的v.滥用( pervert的过去式和过去分词 )；腐蚀；败坏；使堕落 | |
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42
uncommon
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| adj.罕见的，非凡的，不平常的 | |
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43
instinctive
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| adj.(出于)本能的；直觉的；(出于)天性的 | |
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44
prey
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| n.被掠食者，牺牲者，掠食；v.捕食，掠夺，折磨 | |
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45
stationary
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| adj.固定的，静止不动的 | |
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46
lair
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| n.野兽的巢穴；躲藏处 | |
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scrupulous
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| adj.审慎的，小心翼翼的，完全的，纯粹的 | |
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fully
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| adv.完全地，全部地，彻底地；充分地 | |
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49
jealousy
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| n.妒忌，嫉妒，猜忌 | |
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aggression
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| n.进攻，侵略，侵犯，侵害 | |
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51
brutal
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| adj.残忍的，野蛮的，不讲理的 | |
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promiscuity
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| n.混杂，混乱；（男女的）乱交 | |
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53
sociable
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| adj.好交际的，友好的，合群的 | |
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54
hordes
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| n.移动着的一大群( horde的名词复数 )；部落 | |
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sociability
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| n.好交际，社交性，善于交际 | |
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56
thicket
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| n.灌木丛，树林 | |
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57
calves
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| n.(calf的复数)笨拙的男子，腓；腿肚子( calf的名词复数 )；牛犊；腓；小腿肚v.生小牛( calve的第三人称单数 )；（冰川）崩解；生（小牛等），产（犊）；使（冰川）崩解 | |
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58
herd
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| n.兽群，牧群；vt.使集中，把…赶在一起 | |
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gregarious
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| adj.群居的，喜好群居的 | |
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60
atlas
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| n.地图册，图表集 | |
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61
walrus
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| n.海象 | |
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62
temperament
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| n.气质，性格，性情 | |
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antelope
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| n.羚羊；羚羊皮 | |
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inordinately
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| adv.无度地，非常地 | |
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tyrant
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| n.暴君，专制的君主，残暴的人 | |
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allied
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| adj.协约国的；同盟国的 | |
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conjugal
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| adj.婚姻的，婚姻性的 | |
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anthropoid
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| adj.像人类的，类人猿的；n.类人猿；像猿的人 | |
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strictly
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| adv.严厉地，严格地；严密地 | |
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gorillas
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| n.大猩猩( gorilla的名词复数 )；暴徒，打手 | |
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severely
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| adv.严格地；严厉地；非常恶劣地 | |
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72
savage
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| adj.野蛮的；凶恶的，残暴的；n.未开化的人 | |
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entirely
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| ad.全部地，完整地；完全地，彻底地 | |
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74
fidelity
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| n.忠诚，忠实；精确 | |
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75
thwart
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| v.阻挠，妨碍，反对；adj.横(断的) | |
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felines
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| n.猫科动物( feline的名词复数 ) | |
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77
devouring
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| 吞没( devour的现在分词 )； 耗尽； 津津有味地看； 狼吞虎咽地吃光 | |
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sedulously
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| ad.孜孜不倦地 | |
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79
hippopotamus
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| n.河马 | |
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80
asses
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| n. 驴，愚蠢的人，臀部 adv. (常用作后置)用于贬损或骂人 | |
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81
herds
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| 兽群( herd的名词复数 )； 牧群； 人群； 群众 | |
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82
persecute
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| vt.迫害，虐待；纠缠，骚扰 | |
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83
organisation
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| n.组织，安排，团体，有机休 | |
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84
altruism
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| n.利他主义，不自私 | |
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85
supreme
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| adj.极度的，最重要的；至高的，最高的 | |
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86
inquiry
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| n.打听，询问，调查，查问 | |
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87
well-being
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| n.安康，安乐，幸福 | |
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88
attentive
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| adj.注意的，专心的；关心(别人)的，殷勤的 | |
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89
biased
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| a.有偏见的 | |
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90
secondly
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| adv.第二，其次 | |
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91
omissions
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| n.省略( omission的名词复数 )；删节；遗漏；略去或漏掉的事（或人） | |
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92
inadequacy
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| n.无法胜任，信心不足 | |
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93
drawn
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| v.拖，拉，拔出；adj.憔悴的，紧张的 | |
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94
underlying
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| adj.在下面的，含蓄的，潜在的 | |
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95
mere
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| adj.纯粹的；仅仅，只不过 | |
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96
mutual
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| adj.相互的，彼此的；共同的，共有的 | |
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97
paradoxes
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| n.似非而是的隽语，看似矛盾而实际却可能正确的说法( paradox的名词复数 )；用于语言文学中的上述隽语；有矛盾特点的人[事物，情况] | |
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98
wasteful
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| adj.（造成）浪费的，挥霍的 | |
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99
improvident
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| adj.不顾将来的，不节俭的，无远见的 | |
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100
ascended
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| v.上升，攀登( ascend的过去式和过去分词 ) | |
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101
withdrawal
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| n.取回，提款；撤退，撤军；收回，撤销 | |
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102
compensated
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| 补偿，报酬( compensate的过去式和过去分词 )； 给（某人）赔偿（或赔款） | |
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103
sustenance
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| n.食物，粮食；生活资料；生计 | |
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104
unnatural
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| adj.不自然的；反常的 | |
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105
virtues
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| 美德( virtue的名词复数 )； 德行； 优点； 长处 | |
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106
folly
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| n.愚笨，愚蠢，蠢事，蠢行，傻话 | |
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107
participation
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| n.参与，参加，分享 | |
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108
psychic
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| n.对超自然力敏感的人；adj.有超自然力的 | |
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109
alteration
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| n.变更，改变；蚀变 | |
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110
riddle
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| n.谜，谜语，粗筛；vt.解谜，给…出谜，筛，检查，鉴定，非难，充满于；vi.出谜 | |
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111
interpretation
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| n.解释，说明，描述；艺术处理 | |
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112
transformation
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| n.变化；改造；转变 | |
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113
attain
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| vt.达到，获得，完成 | |
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