INSTINCT INTELLIGENCE

Is spontaneous, Is deliberate,

" necessary, " conditional,

" invariable, " modifiable,

" innate, comes from observation and experience,

" fatal, is free,

" particular. " general.

Thus the building faculty of the beaver is an instinct, for it acts

spontaneously, and always in the same way. It is not a general faculty

of building in all places and ways, but a special power of building

houses of sticks, mud, and other materials, with the entrance under

water and a dry place within. When beavers build on a running stream,

they begin by making a dam across it, which preserves them from losing

the water in a drought; but this also is a spontaneous and invariable

act. The old stories of their driving piles, using their tails for

trowels, and having well-planned houses with many chambers, have been

found to be fictitious. That the beaver builds by instinct, though

intelligence comes in to modify the instinct, appears from his wishing

to build his house or his dam when it is not needed. Mr. Broderip,

the English naturalist, had a pet beaver that manifested his building

instinct by dragging together warming-pans, sweeping-brushes, boots,

and sticks, which he would lay crosswise. He then would fill in his

wall with clothes, bits of coal, turf, laying it very even. Finally,

he made a nest for himself behind his wall with clothes, hay, and

cotton. As this creature had been brought from America very young, all

this procedure must have been instinctive. But his intelligence showed

itself in his adapting his mode of building to his new circumstances.

His instinct led him to build his wall, and to lay his sticks

crosswise, and to fill in with what he could find, according to the

universal and spontaneous procedure of all beavers. But his making use

of a chest of drawers for one side of his wall, and taking brushes and

boots instead of cutting down trees, were no doubt acts of intelligence.

A large part of the wonderful procedure of bees is purely instinctive.

Bees, from the beginning of the world, and in all countries of the

earth, have lived in similar communities; have had their queen, to

lay eggs for them: if their queen is lost, have developed a new one

in the same way, by altering the conditions of existence in one of

their larvæ; have constructed their hexagonal cells by the same

mathematical law, so as to secure the most strength with the least

outlay of material. All this is instinct--for it is spontaneous and not

deliberate; it is universal and constant. But when the bee deflects his

comb in order to avoid a stick thrust across the inside of the hive,

and begins the variation before he reaches the stick, this can only be

regarded as an act of intelligence.

Animals, then, have both instincts and intelligence; and so has man. A

large part of human life proceeds from tendencies as purely, if not as

vigorously, instinctive as those of animals. Man has social instincts,

which create human society. Children play from an instinct. The

maternal instinct in a human mother is, till modified by reflection, as

spontaneous, universal, and necessary as the same instinct in animals.

But in man the instincts are reduced to a minimum, and are soon

modified by observation, experience, and reflection. In animals they

are at their maximum, and are modified in a much less degree.

It is sometimes said that animals do not reason, but man does. But

animals are quite capable of at least two modes of reasoning, that of

comparison and that of inference. They compare two modes of action, or

two substances, and judge the one to be preferable to the other, and

accordingly select it. Sir Emerson Tennent tells us that elephants,

employed to build stone walls in Ceylon, will lay each stone in its

place, then stand off and look to see if it is plumb, and, if not, will

move it with their trunk, till it lies perfectly straight. This is a

pure act of reflective judgment. He narrates an adventure which befell

himself in Ceylon while riding on a narrow road through the forest. He

heard a rumbling sound approaching, and directly there came to meet him

an elephant, bearing on his tusks a large log of wood, which he had

been directed to carry to the place where it was needed. Sir Emerson

Tennent's horse, unused to these monsters, was alarmed, and refused to

go forward. The sagacious elephant, perceiving this, evidently decided

that he must himself go out of the way. But to do this, he was obliged

first to take the log from his tusks with his trunk, and lay it on the

ground, which he did, and then backed out of the road between the trees

till only his head was visible. But the horse was still too timid to go

by, whereupon the judicious pachyderm pushed himself farther back, till

all of his body, except the end of his trunk, had disappeared. Then Sir

Emerson succeeded in getting his horse by, but stopped to witness the

result. The elephant came out, took the log up again, laid it across

his tusks, and went on his way. This story, told by an unimpeachable

witness, shows several successive acts of reasoning. The log-bearer

inferred from the horse's terror that it would not pass; he again

inferred that in that case he must himself get out of the way; that, to

do this, he must lay down his log; that he must go farther back; and

accompanying this was his sense of duty, making him faithful to his

task; and, most of all, his consideration of what was due to this human

traveler, which kept him from driving the horse and man before him as

he went on.

There is another well-authenticated anecdote of an elephant; he was

following an ammunition wagon, and saw the man who was seated on it

fall off just before the wheel. The man would have been crushed had

not the animal instantly run forward, and, without an order, lifted

the wheel with his trunk, and held it suspended in the air, till the

wagon had passed over the man without hurting him. Here were combined

presence of mind, good will, knowledge of the danger to the man, and a

rapid calculation of how he could be saved.

Perhaps I may properly introduce here an account of the manifestations

of mind in the animals I have had the most opportunity of observing.

I have a horse, who was named Rubezahl, after the mountain spirit of

the Harz made famous in the stories of Musaeus. We have contracted his

name to Ruby for convenience. Now I have reason to believe that Ruby

can distinguish Sunday from other days. On Sunday I have been in the

habit of driving to Boston to church; but on other days, I drive to the

neighboring village, where are the post-office, shops of mechanics, and

other stores. To go to Boston, I usually turn to the right when I leave

my driveway; to go to the village, I turn to the left. Now, on Sunday,

if I leave the reins loose, so that the horse may do as he pleases, he

invariably turns to the right, and goes to Boston. On other days, he

as invariably turns to the left, and goes to the village. He does this

so constantly and regularly, that none of the family have any doubt

of the fact that he knows that it is Sunday; _how_ he knows it we are

unable to discover. I have left my house at the same hour on Sunday

and on Monday, in the same carriage, with the same number of persons

in it; and yet on Sunday he always turns to the right, and on Monday

to the left. He is fed at the same time on Sunday as on other days,

but the man comes back to harness him a little later on Sunday than at

other times, and that is possibly his method of knowing that it is the

day for going to Boston. But see how much of observation, memory, and

thought is implied in all this.

Again, Ruby has shown a very distinct feeling of the supernatural.

Driving one day up a hill near my house, we met a horse-car coming down

toward us, running without horses, simply by the force of gravity. My

horse became so frightened that he ran into the gutter, and nearly

overturned me; and I got him past with the greatest difficulty. Now

he had met the cars coming down that hill, drawn by horses, a hundred

times, and had never been alarmed. Moreover, only a day or two after,

in going up the same hill, we saw a car moving uphill, before us, where

the horses were entirely invisible, being concealed by the car itself,

which was between us and the horses. But this did not frighten Ruby

at all. He evidently said to himself, "The horses are there, though I

do not see them." But in the other case it seemed to him an effect

without a cause--something plainly supernatural. There was nothing

in the aspect of the car itself to alarm him; he had seen that often

enough. He was simply terrified by seeing it move without any adequate

cause--just as we should be, if we saw our chairs begin to walk about

the room.

Our Newfoundland dog's name is Donatello; which, again, is shortened

to Don in common parlance. He has all the affectionate and excellent

qualities of his race. He is the most good-natured creature I ever saw.

Nothing provokes him. Little dogs may yelp at him, the cat or kittens

may snarl and spit at him: he pays no attention to them. A little

dog climbs on his back, and lies down there; one of the cats will

lie between his legs. But at night, when he is on guard, no one can

approach the house unchallenged.

But his affection for the family is very great. To be allowed to come

into the house and lie down near us is his chief happiness. He was very

fond of my son E----, who played with him a good deal, and when the

young man went away, during the war, with a three months' regiment,

Don was much depressed by his absence. He walked down regularly to the

station, and stood there till a train of cars came in; and when his

friend did not arrive in it, he went back, with a melancholy air, to

the house. But at last the young man returned. It was in the evening,

and Don was lying on the piazza. As soon as he saw his friend, his

exultation knew no bounds. He leaped upon him, and ran round him,

barking and showing the wildest signs of delight. All at once he turned

and ran up into the garden, and came back bringing an apple, which he

laid down at the feet of his young master. It was the only thing he

could think of to do for him--and this sign of his affection was quite

pathetic.

The reason why Don thought of the apple was probably this: we had

taught him to go and get an apple for the horse, when so directed. We

would say, "Go, Don, get an apple for poor Ruby;" then he would run up

into the garden, and bring an apple, and hold it up to the horse; and

perhaps when the horse tried to take it he would pull it away. After

doing this a few times, he would finally lie down on his back under the

horse's nose, and allow the latter to take the apple from his mouth.

He would also kiss the horse, on being told to do so. When we said,

"Don, kiss poor Ruby," he leaped up and kissed the horse's nose. But he

afterwards hit upon a more convenient method of doing it. He got his

paw over the rein and pulled down the horse's head, so that he could

continue the osculatory process more at his ease, sitting comfortably

on the ground.

Animals know when they have done wrong; so far, at least, as that means

disobeying our will or command. The only great fault which Don ever

committed was stealing a piece of meat from our neighbor's kitchen. I

do not think he was punished or even scolded for it; for we did not

find it out till later, when it would have done no good to punish him.

But a week or two after that, the gentleman whose kitchen had been

robbed was standing on my lawn, talking with me, and he referred,

laughingly, to what Don had done. He did not even look at the dog, much

less change his tones to those of rebuke. But the moment Don heard his

name mentioned, he turned and walked away, and hid himself under the

low branches of a Norway spruce near by. He was evidently profoundly

ashamed of himself. Was this the result of conscience, or of the love

of approbation? In either case, it was very human.

That the love of approbation is common to many animals we all know.

Dogs and horses certainly can be influenced by praise and blame, as

easily as men. Many years ago we had occasion to draw a load of gravel,

and we put Ruby into a tip-cart to do the work. He was profoundly

depressed, and evidently felt it as a degradation. He hung his head,

and showed such marks of humiliation that we have never done it since.

But on the other hand, when he goes out, under the saddle, by the side

of a young horse, this veteran animal tries as hard to appear young

as any old bachelor of sixty years who is still ambitious of social

triumphs. He dances along, and goes sideways, and has all the airs and

graces of a young colt. All this, too, is very human.

At one time my dog was fond of going to the railway station to see

the people, and I always ordered him to go home, fearing he should

be hurt by the cars. He easily understood that if he went there, it

was contrary to my wishes. Nevertheless, he often went; and I do not

know but this fondness for forbidden fruit was rather human, too. So,

whenever he was near the station, if he saw me coming, he would look

the other way, and pretend not to know me. If he met me anywhere else,

he always bounded to meet me with great delight. But at the station

it was quite different. He would pay no attention to my whistle or my

call. He even pretended to be another dog, and would look me right in

the face without apparently recognizing me. He gave me the cut direct,

in the most impertinent manner; the reason evidently being that he knew

he was doing what was wrong, and did not like to be found out. Possibly

he may have relied a little on my near-sightedness, in this manœuvre.

That animals have acute observation, memory, imagination, the sense of

approbation, strong affections, and the power of reasoning is therefore

very evident. Lord Bacon also speaks of a dog's reverence for his

master as partaking of a religious element. "Mark," says he, "what

a generosity and courage a dog will put on, when he finds himself

maintained by a man, who to him is instead of a God--which courage

he could not attain, without that confidence in a better nature than

his own." Who that has seen the mute admiration and trust in a dog's

eye, as he looks up at his master, but can see in it something of a

religious reverence, the germ and first principle of religion?

What, then, is the difference between the human soul and that of the

animal in its highest development?

That there is a very marked difference between man and the highest

animal is evident. The human being, weaker in proportion than all other

animals, has subjected them all to himself. He has subdued the earth by

his inventions. Physically too feeble to dig a hole in the ground like

a rabbit, or to fell a tree like a beaver; unable to live in the water

like a fish, or to move through the air like a bird; he yet, by his

inventive power and his machinery, can compel the forces of nature to

work for him. They are the true genii, slaves of his lamp. Air, fire,

water, electricity, and magnetism build his cities and his stately

ships, run his errands, carry him from land to land, and accept him as

their master.

Whence does man obtain this power? Some say it is _the human hand_

which has made man supreme. It is, no doubt, a wonderful machine; a

box of tools in itself. The size and strength of the thumb, and the

power of opposing it to the extremities of the fingers, distinguishes,

according to most anatomists, the human hand from that of the

quadrumanous animals. In those monkeys which are nearest to man, the

thumb is so short and weak, and the fingers so long and slender,

that their tips can scarcely be brought in opposition. Excellent for

climbing, they are not good for taking up small objects or supporting

large ones. But the hand of man could accomplish little without the

mind behind it. It was therefore a good remark of Galen, that "man is

not the wisest of animals because he has a hand; but God has given him

a hand because he is the wisest of animals."

The size of the human brain, relatively greater than that of almost any

other animal; man's structure, adapting him to stand erect; his ability

to exist in all climates; his power of subsisting on varied food: all

these facts of his physical nature are associated with his superior

mental power, but do not produce it. The question recurs, What enables

him to stand at the head of the animal creation?

Perhaps the chief apparent distinctions between man and other animals

are these:--

Nineteenth Century Questions · 第 19 / 35 题