img Thomas Henry Huxley; A Sketch Of His Life And Work  /  Chapter 9 MAN AND THE APES | 52.94%
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Chapter 9 MAN AND THE APES

Word Count: 7014    |    Released on: 01/12/2017

ence-Huxley's Determination to Speak out-Account of his Treatm

uished man, to whom the post would have been acceptable, because he had advocated the view that there were several species of man. The court political leaders, and society generally, resented strongly anything that seemed at all likely to disturb the somewhat narrow orthodoxy prevalent in those times; and, as there were comparatively few posts open to scientific men, and comparatively greater chances of posts being made for men of talent and ability who adhered to the respectable traditions, those who tampered with so serious a question as the place of man were likely to burn their fingers severely. However, the difficulties of discussing these problems were much greater immediately after 1859. One of the most surprising things in the history of this century is the su

eing of a nature so essential as to preclude a comparison between them, or as being other than a difference of degree, I cannot shut my eyes to the significance of that all-perv

Darwin was in its acutest stage, Owen withdrew his words. His "Reade Lecture," delivered in the University of Cambridge, was in all respects a reprint of the essay from which we have just quoted, but the apparently dangerous words were omitted. More than that, the points insisted on in the essay as being sufficient for the purpose of separating man in zo?l

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n. John Collier in the

he doctrine of descent was not meant to exclude man from the field of its operation. Huxley, in the course of his ordinary work as Professor of Biology, had, among many other subjects, naturally turned his attention to the anatomy and classification of the higher animals. When Owen's essay appeared, he found that he was unable to agree with many of the conclusions contained in it, and had set about a renewed investigation of the matter. Thus it happened that, when the question became prominent, in 1860, Huxley was ready with material contributi

but my satisfaction was speedily dashed by the very earnest warning, as to the consequences of publication, which my friend's interest in my welfare led him to give; but, as I have confessed elsewhere, when I was a young man there was just a little-a mere soup?on-in my composition of that tenacity of purpose which has another name, and I felt sure that all the evil things prophesied would not be so painful to me as the giving up of that which

e, truths "plainly obvious and generally denied." Whoever attacks the current ideas is certain, unless human nature changes greatly, to encounter

without troubling his head about the barking of the dogs of St. Ernulphus. Veritas pr?valebit-some day; and, even if she does not prevail in his time, he hims

?logical societies which had been in possession of living specimens. The facts had to be sifted out from a great mass of verbiage and unfounded statement. With a characteristic desire for historical accuracy, more usual in a man of letters than in an anatomist, Huxley began with a study of classical and medi?val legends of the existence of pigmies and man-like creatures; but, while recognising that legends of satyrs and fauns were

at man and the anthropoid apes display the same kind of degenerative specialisation in their jaws. Simpler and older forms of mammals had a much larger number of teeth, and these differed among themselves more than the teeth of the higher forms. In the Anthropoids and Man, the jaws are proportionately shorter and less heavy than in simpler forms, and, in correspondence with this, the number of the teeth has become reduced, while the teeth themselves tend to form a more even row. The canine or eye-teeth are relatively smaller in the gorilla than in primitive mammals; they are still smaller in the lower races of man; while in ordinary civilised man they do not project above the others. The shortening of t

tely longer than in higher races, and it has recently been shewn that, although there is a general proportion between the length of the long bones and the height of the whole body in man, so that the height may be calculated with an average error from these

the other toes. Since Huxley wrote, a considerable amount of evidence has been collected shewing that partial opposability of the toe in man is not uncommon, and that there is evidence

e animals, an account which still remains the best in liter

in the erect, or semi-erect position, a

loud voice, so loud as to be r

ess and violence when irritated; and

ild a nest

the gorilla and chimpanzee, but in their case there

trong cage in the forests inhabited by gorillas and chimpanzees, in the hope that, impelled by curiosity, they would look upon him as we look on monkeys in a zo?logical garden, and that he would thus be able to make his knowledge and records of monkey language more perfect. As a matter of fact he went to Africa, and on his return published a volume which aroused the indignation of naturalists. There was internal evidence that he had gone no further than the garden of a coast station, and his pretended acc

was able to untie the most intricate knot with fingers or teeth, and took such pleasure in doing it that she regularly untied the shoes of those who came near her. The female chimpanzee called Sally, that lived for many years in the Zo?logical Society's Gardens in London, was taught by its keeper and by Romanes an interesting variety of "tricks" involving at least the rudiments of what may be called human intelligence. Among other feats, it would pick up from the floor and pr

s master's slippers, and slides about the room, then takes a cloth and scrubs the floor. Scouring, sweeping, an

scription of a gorilla which was re

so carefully that I do not remember having lost a single piece of crockery through him, though we had never tried t

nct demands the presence of exactly the right external conditions for its accomplishment. In the absence of these conditions, the call to perform the instinctive action is equally great, and results in useless performances. In many of the higher animals these elaborate instincts are more general in their character, and are supplemented by a considerable but varying aptitude for modification of instinctive action to suit varieties of surrounding circumstances. As this intelligence becomes more and more developed, the blind, mechanical instinct becomes weaker. A large number of instances might be given of such instinc

ion to man, prefacing his observations with a passage defending the utility of the enquiry, a

derstanding of his relations to the universe; and this again resolves itself in the long run into an enquiry into the nature and

pect of what looks like an insulting caricature, as to the awakening of a sudden and profound mistrust of time-honoured theories and strongly rooted prejudices regarding his own position in nature, and his relations to the underworld

fowl, although, in the case of the dog, there is not the accumulation of nutritive material which bloats the egg of the hen into its enormous size. Since Huxley wrote, it has been shewn clearly that among the mammalian animals there has been a gradual reduction in the size of the egg. The ancestors of the mammals laid large eggs, like those of birds or reptiles; and there still exist two strange mammalian creatures, the Ornithorhynchus and Echidna of Australia, which lay large, reptilian-like eggs. The ancestors of most living mammalia acquired the habit of retaining the eggs within the body until they were hatched; and, as a result of this, certain structures which grow out from the embryo while it is still within the egg and become applied to the inner wall of the porous shell for the purpose of obtaining air, got their supp

which indicates the future middle line of the animal, and is, in fact, the beginning of the nervous system. Under this is formed a straight rod of gelatinous material, the foundation of

a primitive groove, in the floor of which a notochord is developed. Furthermore, there is a period in which the young of all these animals resemble one another, not merely in outward form, but in all essentials of structure, so closely, that the differences between them are inconsiderable, while in their subsequent course they diverge more and more widely from one another. And it is a general law, that, the more closely any animals r

ion occurs when two closely related animals live under very different conditions. For instance, many marine animals have close allies that in comparatively recent times have taken to live in fresh water. The conditions of life in fresh water are very different, especially for delicate creatures susceptible to rapid changes of temperature, or unable to withstand strong currents. Thus most of the allies of the fresh-water crayfish, which live in the sea, lay eggs from which there are soon hatched minute, almost transparent larv?, exceedingly unlike the adult. In the comparatively equable temperature of sea-water, and in the usual abs

ds to discuss the

ss through the same slow and gradually progressive modifications, depend on the same contrivances for protection and nutrition, and finally enter the world by the help of the same mechanism? The reply is not doubtful for a moment, and has not been doubtful any time

stage by stage, the development of man with that of other animals, and shewed, first, its essential similarity, and then that in every case wh

if his adult and perfect structure be compared with theirs exhibits, as might be expected, a marvellous likeness of organisation. He resembles them as they resemble one another-he differs from, them as they differ from one another. And, though

tion, he tried to dispel preliminary prejudice by inducing h

singular 'erect and featherless biped,' which some enterprising traveller, overcoming the difficulties of space and gravitation, has brought from that distant planet for our inspection, well preserved, may be, in a cask of rum. We should all, at once, agree upon placing him am

hales, nor the hoofed creatures, nor the sloths and ant-eaters, nor the carnivorous cats, dogs, and bears, still less the

tion for discussion would narrow itself to this-Is Man so different from any of these apes that he must form an order by himsel

e question related to a new opossum. We should endeavour to ascertain, without seeking either to magnify or diminish them, all the characters by which our new mammal differed from the apes; and if we found that these were

res, shewing that in every case man did not differ more from the gorilla than that differed from other anthropoids. We shall take a few examples of

ort that attitude. In the gorilla this region differs considerably from that in man. The haunch-bones are narrower and much shallower, so that they do not form so convenient a supporting basin; they have much less surface for the attachment of muscles. The gibbon, however, differs more vastly from the gorilla than that differs from man. The haunch-bones are flat

brain, certain real or supposed structural distinc

ll the apes possess four hands; and he has been affirmed to differ fundamentally from all the apes in the characters of his brain, which alone, it has been strangely

ing that it is an innovation which is not only opposed to generally and justly accepted doctrines, but which is directly negatived by the testimony of all original enquirers who have specially investigated the matter; and that it has

brain in the vertebrate series, explaining the well-known fact that from fish up to man the general ground-plan of the brain is identical, but that there is a progressive increase in the complexity and in the size of some parts compared with others. Next, he showed that, so far from

minor, more or less rudimentary. Every marmoset, American monkey, old-world monkey, baboon, or man-like ape, on the contrary, has its cerebellum entirely hidden, posteriorly, by the cerebral lobes, and possesses a large posterior cornu, with a well-developed hippocampus minor." ... "So far from the posterior lobe, the posterior cornu, and the hippocampus minor being structures peculiar to, and characteristic of man, as they have over and over again been asserted to be, even after the publication of the clearest d

uropean woman, and yet the heaviest known gorilla brain probably does not exceed twenty ounces in weight, while healthy adult human brains probably never weigh less than thirty-one or thirty-two ounces. This difference is not of syst

ained and discussed what the exact differences between hands and feet are. He shewed that in man the foot is absolutely distinguish

ent of the t

t flexor and short exten

f a muscle named

. Tracing the structure of the foot downwards through the series of anthropoids and monkeys, he established clearly that, while important differences existed in nearly every sing

only added to the details of Huxley's argument; it has not made any reconstruction of it necessary. A writer on the same subject to-day would to all certainty make use of the same general methods. The chief differences, perhaps, that would be made are two: First, greater stress would be laid on the distinction, first made by Huxley himself, between intermediate and linear types. (See p. 87). To use the popular phrase, a great deal of water has passed under the bridges since the separation of man from the ape-like progenitors common to him and to the existing anthropoids. It has already been pointe

ered sufficient. The comparison must be made between the results of dissection of a very large number of men and of a very large number of gorillas. The anatomy of a type is not the anatomy of an individual; it is a kind of central point around which there oscillate the variations presented by the individuals belonging to the type. So far as this newer method has been applied, it has been found

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