Brehm, the German naturalist, gives a very curious account of a chimpanzee at the Zoölogical Garden in Hamburg. He satisfied himself that the animal understood as much human speech as an average child of two and a half years old. For instance, when he asked, “Do you see the ducks?” the chimpanzee would look about the garden, passing over the geese and swans, until he found the birds indicated. At the command, “Go and sit down!” uttered without any inflection of voice or glance towards a chair, he would promptly obey; on being told, “You are naughty,” he would hang his head, with an expression of distress; and he very soon learned to express his affection by kisses and caresses, like the children whom he saw.

I presume it is a very common observation of persons who own intelligent dogs, that if they happen to describe to a visitor some fault for which the animal has been scolded or punished, in the latter’s presence, he will exhibit an uneasy consciousness of what is said, even sometimes quietly slink away. But the extent to which a horse, also, may be taught to understand speech, is not so generally known. The simple fact that he likes to be talked to makes him attentive to the sounds, and I am convinced that in a great many cases he has an impression of the meaning. I have at present a horse that served his country during the war, and came to me only after its close. His experience while on scouting service made him very suspicious of any gray object, as I soon discovered; he would shy at a fallen log in a thicket, a glimpse of mossy rock, or a laborer’s coat left in a fence-corner. By stopping him whenever this happened, and telling him, in an assuring tone, that there was nothing to fear, he was very soon completely cured of the habit. But he still lifts up his head, and would, if he could, cry “Ha! ha!” when he hears the sound of the trumpet.

The affection and fidelity of the horse have always been admitted. My first acquaintance with these qualities was singular enough to be related. When a boy of fourteen, I was walking along a lonely country road with a companion of the same age, and came upon an old gray horse, standing in the middle of the track, over a man who was lying upon his back. We hastened up to give assistance, but presently saw that the man, instead of being injured, was simply dead drunk. He had tumbled off, on his way home from the tavern, and a full bottle of whiskey, jolted out of his pocket in falling, lay by his side. The forefeet of the horse were firmly planted on each side of his neck, and the hind feet on each side of his legs. This position seeming to us dangerous for the man, we took the animal by the bridle and attempted to draw him away; but he resisted with all his strength, snorting, laying back his ears, and giving every other sign of anger. It was apparent that he had carefully planted himself so as completely to protect his master against any passing vehicle. We assisted the faithful creature in the only possible way,—by pouring the whiskey into the dust,—and left him until help could be summoned. His act indicated not only affection involving a sense of duty, but also more than one process of reasoning.

Darwin, as I understand him, is still doubtful whether there is a moral sense in animals. We can judge only from acts, of course, but our interpretation of those acts depends upon our sympathetic power of entering into the feelings of the animal. This is an element which Science will not accept; hence I doubt whether her deductions may not fall as far short of the truth as a vivid imagination may go beyond it. To me, it is very clear that there is at least a rudimentary moral sense in animals. I have had two marked evidences thereof, which are the more satisfactory inasmuch as they include a change of conduct which can be explained only by assuming an ever-present memory of the fault committed. If this be not a lower form of conscience in its nature, its practical result is certainly the very same. Were we to judge a strange man by his actions, his speech being wholly unintelligible to us, we should give him the credit of a positive conscience in like circumstances. Why should we withhold it from an animal?

Let the reader decide for himself! I have a horse that is now not less than forty-one years old, and it is possible that he is a year or two older; for thirty-eight years ago he was broken to use. He is at present on the retired list, only occasionally being called upon to lend a helping shoulder to his younger colleague; but his intellect is as fresh and as full of expedients as ever. No horse ever knew better how to save himself, to spare effort and prolong his powers; no one was ever so cunning to slip his halter, open the feed-box, and supply the phosphates, the necessity of which to him he knew as well as any “scientist.” I have seen him, through a crack in a board shanty used while the stable was building, lift and lay aside with his teeth six boxes which were piled atop of one another, until he found the oats at the bottom. Then, when my head appeared at the window, he instantly gave up his leisurely, luxurious munching of the grain, opened his jaws to their fullest extent, thrust his muzzle deep into the box, and gravely walked back to his stall with at least a quart of oats in his mouth. This horse had a playful habit of snapping at my arm when he was harnessed for a drive. (I always talk to a horse before starting, as a matter of common politeness.) Of course I never flinched, and his teeth often grazed my sleeve as he struck them together. One day, more than a dozen years ago, he was in rather reckless spirits and snapped a little too vigorously, catching my arm actually in his jaws. I scarcely felt the bite, but I was very much surprised. The horse, however, showed such unmistakable signs of regret and distress that I simply said, “Never do that again!” And he never did! From that moment, he gave up the habit of years; he laid back his ears, or feigned anger in other ways, but he never again made believe to bite. This, certainly, goes far beyond the temporary sorrow for an unintentional injury which may be referred to an animal’s affection. What else is conscience than knowledge of wrong made permanent by a memory which forbids the repetition of the wrong?

The other instance was furnished by a creature which is popularly supposed to be as stupid as it is splendid,—a peacock! This, being a long-lived bird, and therefore dowered with a richer experience than other domestic fowls, ought to be wiser in proportion; yet I have never heard of the peacock being cited as an example of either intelligence or moral sense. The bird is vain, it is true; but if vanity indicates lack of intelligence, what will become of men and women? I have often watched “John” (the name we gave him and which he always recognized) spreading his tail before a few guinea-fowl, who were so provokingly indifferent to the rayed splendor that he invariably ended by driving them angrily away. On the other hand, can I ever forget the simple, untiring attachment of the gorgeous creature? The table at which I wrote stood near a bay-window, so that I had the true left-hand side-light, with a window at my back. As soon as I took my place there, after breakfast, the peacock flew upon the window-sill, and, whenever I failed to notice him, the sharp taps of his bill upon the glass reminded me of his presence. Then I turned, and, as in duty bound, said, “Good morning, John!” after which he continued to sit there, silent and content, for two or three hours longer. The peacock is ordinarily a shy fowl, but John was bold enough to eat out of our hands.

As often as spring came, however, it was impossible to prevent his depredations in the garden. He had a morbid taste for young cabbage and lettuce plants, especially when they were just rooted after being set out, and he would sometimes pick a whole bed to pieces while the gardener’s back was turned. For awhile I amused myself by testing his powers of dissimulation. I waited behind a clump of bushes until he was fairly on his way to the garden, making long, swift strides, with depressed neck and tail, and then I suddenly stepped forth. In the twinkling of an eye John stood upright, walked leisurely in the opposite direction, and seemed quite absorbed in the examination of some trifling object. His air and manner, to the tips of his feathers, expressed the completest ignorance of a garden. He would spread his tail, call to the other fowls, peer under the hedge, and in similar ways attempt to beguile me out of sight of his secret aim. If I humored him for a few moments, he was always found a good many yards nearer the garden when I turned again. I have never seen a more hypocritical assumption of innocence and indifference in any human being.

There came a season when even the patience of old friendship was too severely tried. The peacock was presented to a friend, who lived two or three miles away and was the possessor of a couple of hens. I missed the morning tap at my window, the evening perch on the walnut-tree, the unearthly cries which used so to startle guests from the city, but consoled myself with thinking that our loss was his gain, for we had never replaced his lost spouse. He had been gone about a week, when one evening the familiar cry was heard from a grove on the farm, nearly half a mile from the house. Next day, John was seen in a weedy field, but slipped out of sight on finding he was detected. We let him alone, and in the course of a fortnight he had advanced as near as the chestnut-tree which I proudly exhibit to strangers as one of the antiquities of America, for it was growing when Charlemagne reigned in Aix-la-Chapelle and Haroun al-Raschid in Bagdad. He now allowed himself to be seen, but utterly refused to recognize any member of the family. When we called him by name, he instantly walked away; when we threw him food, he refused to touch it. Little by little, however, he forgave us the offence; in another fortnight he roosted on the walnut-tree, and at the end of the second month I heard his tap of complete reconciliation on the window. But the exile and mortification had chastened his nature. From that day the young plants were safe from his bill; he lived with us three or four years longer, but was never once guilty of the same fault. No one denies that an animal is easily made to understand that certain things are forbidden. Discipline, alone, may accomplish thus much. But when two creatures so far removed as a horse and a peacock assimilate the knowledge to such an extent that the one gives up a habit and the other resists a tempting taste, we must admit either the germ of a moral sense or an intellect capable of positive deduction.

The same horse once revealed to me the latter quality in a surprising way. On telling the story privately, I find that it is sometimes incredulously received; yet I am sure that no one who cherished the proper respect for animals will refuse it credence. In the company of a friend, I was driving along a country road in a light, open buggy. I paid no attention to the horse, for he could turn, back, or execute any other manœuvre in harness, as well without as with a driver. Halting at a house where my friend wished to call, I waited for him outside. Presently the horse looked back at me, twisting his body between the thills in a singular fashion. I perceived that he had some communication to make and said, “What is the matter now, Ben?” Thereupon, by twisting a little more, he managed to hold up his right hind foot, and I saw that the shoe had been lost. “That’s right,” said I; “you shall have a new shoe as soon as we get to the village.” He set down his foot, and for a moment seemed satisfied. Then the same turning of the head and twisting of the body were repeated. “What, Ben! is anything else the matter?” I asked. He now lifted up the left hind foot, which was still shod. I was quite at a loss to understand him, and remained silent. He looked back at me, out of the corner of his eye, and evidently saw that I was puzzled, whereupon he set down his foot and seemed to think. Almost immediately he lifted it up again, and shook it vigorously. The loose shoe rattled! There was a positive process of reasoning in this act, and it is too simple and clear to be interpreted in any other way.

I have had plenty of opportunity, yet very little time, to study bird nature; but ever since I saw a gentleman, in the park at Munich, entice the birds to come and feed from his hand by standing perfectly still and whistling a few soft, peculiar notes, I have been convinced of the possibility of a much more familiar intercourse. Simply by feeding such birds as remain through the winter, and keeping sportsmen off the place, all varieties of birds soon became half tame. In the summer, when the windows were opened, they entered the house every day, and I frequently found that a bird which had once been caught and released readily allowed itself to be caught a second time. Once a little red-breasted creature, with a black head, lay exhausted in my hand, overcome with the terror and mystery of a glass pane. At first I thought it dead; but suddenly it hopped upon its feet, looked in my face with bright, piercing eyes, and chirped a few notes, which distinctly said, “Did you deliver me? Am I really free?” Then, still chirping, it slowly hopped up my arm to the shoulder, sang a snatch of some joyous carol, and flew away, brushing my cheek as it went. Another time, when I picked up some callow cat-birds out of the deep grass and replaced them in the nest, the parents actually dashed against my head in their distress and rage; but after I had retired a few minutes to let them be reassured, they allowed me to approach the nest without interrupting their talk with the young ones. Even a hummingbird, drenched and chilled by a September rain soon learned to be happy in a basket of warm cotton, and to sip sugared water out of a teaspoon.