Brain-owning wild animals are not mere machines of flesh and blood, set agoing by the accident of birth, and running for life on the narrow-gauge railway of Heredity. They are not "Machines in Fur and Feathers," as one naturalist once tried to make the world believe them to be. Some animals have more intelligence than some men; and some have far better morals.
What Constitutes Evidence. The best evidence regarding the ways of wild animals is one's own eye-witness testimony. Not all second- hand observations are entirely accurate. Many persons do not know how to observe; and at times some are deceived by their own eyes or ears. It is a sad fact that both those organs are easily deceived. The student who is in doubt regarding the composition of evidence will do well to spend a few days in court listening to the trial of an important and hotly contested case. In collecting real evidence, all is not gold that glitters.
Many a mind misinterprets the thing seen, sometimes innocently, and again wantonly. The nature fakir is always on the alert to see wonderful phenomena in wild life, about which to write; and by preference he places the most strained and marvellous interpretation upon the animal act. Beware of the man who always sees marvellous things in animals, for he is a dangerous guide. There is one man who claims to have seen in his few days in the woods more wonders than all the older American naturalists and sportsmen have seen added together.
Now, Nature does not assemble all her wonderful phenomena and hold them in leash to be turned loose precisely when the great Observer of Wonders spends his day in the woods. Wise men always suspect the man who sees too many marvelous things.
The Relative Value of Witnesses. It is due that a word should be said regarding "expert testimony" in the case of the wild animal. Some dust has been raised in this field by men posing as authorities on wild animal psychology, whose observations of the world's wild animals have been confined to the chipmunks, squirrels, weasels, foxes, rabbits, and birds dwelling within a small circle surrounding some particular woodland house. In another class other men have devoted heavy scientific labors to laboratory observations on white rats, domestic rabbits, cats, dogs, sparrows, turtles and newts as the handpicked exponents of the intelligence of the animals of the world!
Alas! for the human sense of Proportion!
Fancy an ethnologist studying the Eskimo, the Dog-Rib Indian, the Bushman, the Aino and the Papuan, and then proceeding to write conclusively "On the Intelligence of the Human Race."
The proper place in which to study the minds, manners and morals of wild animals is in the most thickly populated haunts of the most intelligent species. The free and untrammeled animal, busily working out its own destiny unhindered by man, is the beau-ideal animal to observe and to study. Go to the plain, the wilderness, the desert and the mountain, not merely to shoot everything on foot, but to SEE animals at home, and there use your eyes and your field-glass. See what normal wild animals do as "behavior," and then try to find out why they do it.
The next best place for study purposes is a spacious, sanitary and well-stocked zoological park, wherein are assembled great collections of the most interesting land vertebrates that can be procured, from all over the earth. There the student can observe many new traits of wild animal character, as they are brought to the surface by captivity. There will some individuals reveal the worst traits of their species. Others will reveal marvels in mentality, and teach lessons such as no man can learn from them in the open. To study temperament, there is no place like a zoo.
Even there, however, the wisest course,—as it seems to me,—is not to introduce too many appliances as aids to mental activity, but rather to see what the animal subject thinks and does by its own initiative. In the testing of memory and the perceptive faculties, training for performances is the best method to pursue.
The reader has a right to know that the author of this volume has enjoyed unparalleled opportunities for the observation and study of highly intelligent wild animals, both in their wild haunts and in a great vivarium; and these combined opportunities have covered a long series of years.
Before proceeding farther, it is desirable to define certain terms that frequently will be used in these pages.
THE ANIMAL BRAIN is the generator of the mind, and the clearing- house of the senses. As a mechanism, the brain of man is the most perfect, and in the descent through the mammals, birds, reptiles, amphibians and fishes, the brain progressively is simplified in form and function.
THOUGHT is the result of the various processes of the brain and nervous system, stimulated by the contributions of the senses.
SANITY is the state of normal, orderly and balanced thought, as formulated by a healthy brain.
INSANITY is a state of mental disease, resulting in disordered, unbalanced and chaotic thought, destitute of reason.
REASON is the manifestation of correct observation and healthful thought which recognizes both cause and effect, and leads from premise to conclusion. INTELLIGENCE is created by the possession of knowledge either inherited or acquired. It may be either latent or active; and it is the forerunner of reason.
INSTINCT is the knowledge or impulse which animals or men derive from their ancestors by inheritance, and which they obey, either consciously or subconsciously in working out their own preservation, increase and betterment. Instinct often functions as a sixth sense.
EDUCATION is the acquirement of knowledge by precept or by observation; but animals as well as men may be self-taught, and become self-educated, by the diligent exercise of the observing and reasoning faculties. The adjustment of a wild animal mind to conditions unknown to its ancestors is through the process of self-education, and by logical reasoning from premise to conclusion.
The wild animal must think, or die.
Animal intelligence varies in quantity and quality as much as animals vary in size. Idiots, maniacs and sleeping persons are the only classes of human beings who are devoid of intelligence and reasoning power. Idiots and maniacs also are often devoid of the common animal instinct that ordinarily promotes self- preservation from fire, water and high places. A heavily sleeping person is often so sodden in slumber that his senses of smell and hearing are temporarily dead; and many a sleeping man has been asphyxiated by gas or smoke, or burned to death, because his deadened senses failed to arouse him at the critical moment. (This dangerous condition of mind can be cured by efforts of the will, exercised prior to sleep, through a determination resolutely to arouse and investigate every unusual sensation that registers "danger" on any one of the senses.) The normal individual sleeps with a subconscious and sensitive mind, from which thought and reason have not been entirely eliminated.
Every act of a man or animal, vertebrate or invertebrate, is based upon either reason or hereditary instinct. It is a mistake to assume that because an organism is small it necessarily has no "mind," and none of the propelling impulse that we call thought. The largest whale may have less intelligence and constructive reasoning than a trap-door spider, a bee or an ant. To deny this is to deny the evidence of one's senses.
A MEASURE FOR ANIMAL INTELLIGENCE. The intelligence of an animal may be estimated by taking into account, separately, its mental qualities, about as follows:
1. General knowledge of surrounding conditions. 2. Powers of independent observation and reasoning. 3. Memory. 4. Comprehension under tuition. 5. Accuracy in the execution of man's orders.
Closely allied to these are the moral qualities which go to make up an animal's temperament and disposition, about as follows:
1. Amiability, which guarantees security to its associates. 2. Patience, or submission to discipline and training. 3. Courage, which gives self-confidence and steadiness. 4. A disposition to obedience, with cheerfulness.
All normal vertebrate animals