In my room and dwelling beneath my table was a large black spider, one of the most beautiful of her species. When I first made her acquaintance she was very timid, and would run to her den if I made the slightest motion. As time passed, however, she grew bolder and would come to the edge of the table which was close beside my bed, and regard me intently with her beady black eyes. Finally she became so tame that she would take flies and insects from my fingers. She learned to know me so well that she could easily tell the difference when others came into the room. When I would leave the room for a short outing, on my return I would find her waiting for me on the top of the table. When others entered the room, she would hide herself in her den, and remain there, very frequently, until they took their departure.
It has been known for quite a while that in the nests of ants there are always to be found other insects, which appear to dwell in perfect harmony with the real builders and owners of the domiciles. Some of these creatures (the aphides, for instance) are brought into the nests by the ants themselves, which use them as we do cows, milking from their bodies a clear, sweet fluid, which they greedily lap up with their tongues. But there are other animals in the teeming formicary which seem to subserve no useful purpose other than that of ministering to the ants' love of pets or playmates. One notable little alien in certain ant communities is a minute claviger beetle (so called from its peculiar claviger, or club-shaped antennæ), which seems to be a well-beloved friend and companion, and which is always treated with great kindness.[39] These little beetles sometimes leave the nest, and may be observed sunning themselves at the entrance. The busy workers are never so busy but that they can spend a fraction of a second for the purpose of caressing their diminutive playmates. On one occasion, a swarm was about to take place in one of my formicaries. The young princes and princesses had emerged and had congregated about the entrance; they seemed loath to take wing and fly away on their honeymoon jaunt out into the unknown world. The workers were gently urging them to depart, sometimes even nipping them slightly with their mandibles. Several little clavigers could be seen running here and there and everywhere through the crowd of anxious workers and timid young males and females. They irresistibly reminded me of a lot of little dogs in a crowd of men around some centre of excitement or attraction. I have seen dogs, on more than one occasion, act in just such a manner. The ants, notwithstanding their evident worry and excitement, seemed to notice their little pets, and to give them, every now and then, an encouraging pat, as it were, on their backs or heads.
The clavigers are not the only pets in a formicary; several other species of beetles and one bug also live in ants' nests, and seem to occupy places in the affection of the masters of the home akin to those which dogs, cats, and other pets occupy in our own affections.
It has been asserted, most frequently by superficial observers, however, that the reptilian psychos is exceedingly low; this is a popular error, for many reptiles give evidence, on occasions, of a, comparatively speaking, high degree of intelligence. Especially is this true in regard to their memory of individuals.
I kept for some time in my room, some years ago, a male black snake (Bascanion constrictor). Whenever this creature became hungry, he would follow me about the room like a dog or a cat. He would wind his way up my legs and body, until his head was on a level with my own; he would then bow repeatedly, darting out his tongue with inconceivable rapidity.
He would never attempt to crawl up the legs of a visitor (some visitors knew "Blacky" quite well and were not at all afraid of him), thus showing that he knew me personally.
Again, a friend sent me two Floridian chameleons, which dwelt in my desk, and which, in course of time, became very tame. My desk is a combination bookcase and writing-table, and these creatures passed most of their time among the books, changing color so perfectly, especially when alarmed, that it took a very sharp eye indeed to descry them when they were quiescent. When I sat at my desk writing they would jump down on my head or shoulders and explore my entire body, running here and there and everywhere about me, sometimes tickling me with their sharp little claws until I, too, was forced into making a tour of discovery, in order to bring them once more to the light. But let a stranger enter the room, and, presto! they were gone in the twinkling of an eye. I left home on one occasion and was gone for two months. When I came to my room and sat down at my desk, I looked about for my little pets, and could not see them. I had come to the conclusion that they had either died or escaped from the room, when suddenly I saw a tiny little head peep out from between two books and as suddenly disappear. I pulled out a writing-pad and went to work, keeping a watch, however, for my shy little friends. They gradually became bolder and bolder, until all at once they seemed to recognize me, first one and then the other leaping to my shoulders. In a few moments they were making their usual tour over my person. In this instance these lizards remembered me after an absence of at least two months; it took them about two hours fully to recall my personality, yet they did it in the end.
Birds remember individuals, and testify their love or hatred for such individuals in actions that are unmistakable. Thus, an eagle in Central Park, for some—to me—unknown reason, took a great dislike to myself, and, whenever I approached its cage, would erect its crest and regard me in the most belligerent manner. On several occasions it even left its perch and flew to the bars in its desire to attack me. A large, handsome gobbler belonging to my mother has shown the house boy that it is war to the death between them. This turkey never fails to attack the boy whenever opportunity offers; no other person is ever molested by him.
A lady writes me as follows: "Last week my brother" (a lad of twelve) "killed a snake which was just in the act of robbing a song-sparrow's nest. Ever since then, the male sparrow has shown gratitude to George in a truly wonderful manner. When he goes into the garden the sparrow will fly to him, sometimes alighting on his head, at other times on his shoulder, all the while pouring out a tumultuous song of praise and gratitude. It will accompany him about the garden, never leaving him until he reaches the garden gate. George, as you know, is a quiet boy, who loves animals, and this may account, in a degree, for the sparrow's extraordinary actions."
I am perfectly convinced that the nesting birds on my place know me, and that they remember me from one nesting-time to another. I have repeatedly approached my face to within a foot of setting birds without alarming them. On one occasion I even placed my hand on a brooding cardinal, which merely fluttered from beneath it without showing further alarm; yet no wild bird has ever evinced toward myself any special degree of friendship. When I was a lad I remember that a certain decrepit old drake would follow me like a dog, and appeared to enjoy himself in my society. I could not appreciate his friendship then, and greatly fear that I was, at times, rather cruel to the old fellow.