captivity the youthful howler habitually growls and grumbles in a way that is highly amusing, and the absurd pitch of the deep bass voice issuing from so small an animal is cause for wonder.
It is natural that we should look closely to the apes and monkeys for language, both by voice and sign. In 1891 there was a flood of talk on "the speech of monkeys," and it was not until about 1904 that the torrent stopped. At first the knowledge that monkeys can and do communicate to a limited extent by vocal sounds was hailed as a "discovery"; but unfortunately for science, nothing has been proved beyond the long-known fact that primates of a given species understand the meaning of the few sounds and cries to which their kind give utterance.
Thus far I have never succeeded in teaching a chimpanzee or orangutan to say even as much as "Oh" or "Ah." Nothing seems to be further from the mind of an orang than the idea of a new vocal utterance as a means to an end.
Our Polly was the most affectionate and demonstrative chimpanzee that I have ever seen, and her reaction to my voice was the best that I have found in our many apes. She knew me well, and when I greeted her in her own language, usually she answered me promptly and vociferously. Often when she had been busy with her physical- culture exercises and Delsartean movements on the horizontal bars or the trapeze in the centre of her big cage, I tested her by quietly joining the crowd of visitors in the centre of the room before her cage, and saying to her: "Polly! Wah! Wah! Wah!"
Nearly every time she would stop short, give instant attention and joyously respond "Wah! Wah! Wah!", repeating the cry a dozen times while she clambered down to the lower front bars to reach me with her hands. When particularly excited she would cry "Who-oo! Who-oo! Who-oo!" with great clearness and vehemence, the two syllables pitched four notes apart. This cry was uttered as a joyous greeting, and also at feeding-time, in expectation of food; but, simple as the task seems to be, I really do not know how to translate its meaning into English. In one case it appears to mean "How do you do?" and in the other it seems to stand for "Hurry up!"
Polly screamed when angry or grieved, just like a naughty child; and her face assumed the extreme of screaming-child expression. She whined plaintively when coaxing, or when only slightly grieved. With these four manifestations her vocal powers seemed to stop short. Many times I opened her mouth widely with my fingers, and tried to surprise her into saying "Ah," but with no result. It seems almost impossible to stamp the vocal-sound idea upon the mind of an orang-utan or chimpanzee. Polly uttered two distinct and clearly cut syllables, and it really seemed as if her vocal organs could have done more if called upon.
The cries of the monkeys, baboons and lemurs are practically nothing more than squeals, shrieks or roars. The baboons (several species, at least) bark or roar most explosively, using the syllable "Wah!" It is only by the most liberal interpretation of terms that such cries can be called language. The majority express only two emotions—dissatisfaction and expectation. Every primate calls for help in the same way that human beings do, by shrill screaming; but none of them ever cry "Oh" or "Ah."
The only members of the monkey tribe who ever spoke to me in their native forests were the big black langurs of the Animallai Hills in Southern India. They used to glare down at us, and curse us horribly whenever we met. Had we been big pythons instead of men they could not have said "Confound you!" any more plainly or more vehemently than they did.
In those museum-making days our motto was "All's fish that cometh to net"; and we killed monkeys for their skins and skeletons the same as other animals. My brown-skinned Mulcer hunters said that the bandarlog hated me because of my white skin. At all events, as we stalked silently through those forests, half a dozen times a day we would hear an awful explosion overhead, startling to men who were still-hunting big game, and from the middle zone of the tree-tops black and angry faces would peer down at us. They said: "Wah! Wah! Wah! Ah-^oo-oo-Aoo-oo-^oo-oo!" and it was nothing else than cursing and blackguarding. How those monkeys did hate us! I never have encountered elsewhere anything like it in monkey-land. la 1902 there was a startling exhibition of monkey language at our Primate House. That was before the completion of the Lion House. We had to find temporary outdoor quarters for the big jaguar, "Senor Lopez"; and there being nothing else available, we decided to place him, for a few days only, in the big circular cage at the north end of the range of outside cages. It was May, and the baboons, red-faced monkeys, rhesus, green and many other of the monkeys were in their outside quarters.
I was not present when Lopez was turned into the big: cage; but I heard it. Down through the woods to the polar bears' den, a good quarter of a mile, came a most awful uproar, made by many voices. The bulk of it was a medley of raucous yells and screeches, above which it was easy to distinguish the fierce, dog-like barks and roars of the baboons.
We knew at once that Lopez had arrived. Hurrying up to the Primate House, we found the wire fronts of the outside cages literally plastered with monkeys and baboons, all in the wildest excitement. The jaguar was in full view of them, and although not one out of the whole lot, except the sapajous, ever had an ancestor who had seen a jaguar, one and all recognized a hostile genus, and a hereditary enemy.
And how they cursed him, reviled him, and made hideous faces at him! The long-armed yellow baboons barked and roared until they were heard half a mile away. The ugly-tempered macaques and rhesus monkeys nearly burst with hatred and indignation. The row was kept up for a long time, and the monkey language that was lost to science on that occasion was, both in quantity and quality, beyond compare.
Bear Language. In their native haunts bears are as little given to loud talk as other animals; but in roomy and comfortable captivity, where many are yarded together, they rapidly develop vocal powers. Our bears are such cheerful citizens, and they do so many droll things, that the average visitor works overtime in watching them. I have learned the language of our bears sufficiently that whenever I hear one of them give tongue I know what he says. For example:
In warning or threatening an enemy, the sloth bear says: "Ach! Ach! Ach!" and the grizzly says: "Woof! Woof!" A fighting bear says: "Aw-aw-aw!" A baby's call for its mother is "Row! Row!" A bear's distress call is: "Err-wow-oo-oo-oof!"
But even in a zoological park it is not possible for everyone to recognize and interpret the different cries of bears, although the ability to do so is sometimes of value to the party of the second part. For example:
One day in February I was sitting in my old office in the Service Building, engrossed in I know not what important and solemn matter. The park was quiet; for the snow lay nine inches deep over all. There were no visitors, and the maintenance men were silently shovelling. Over the hill from the bear dens came the voice of a bear. It said, as plainly as print: "Err-wow!" I said to myself: "That sounds like a distress call," and listened to hear it repeated.
Again it came: "Err-wow!"
I caught up my hat and hastened over the hill toward the bear dens. On the broad concrete walk, about a hundred feet from the dens, four men were industriously shovelling snow, unaware that anything was wrong anywhere except on the pay-roll, opposite their names.
Guided by the cries that came from "The Nursery" den, where six yearling cubs were kept, I quickly caught sight of the trouble. One of our park-born brown bear cubs was hanging fast by one forefoot from the top of the barred partition. He had climbed to the top of the ironwork, thrust one front paw through between two of the bars (for bears are the greatest busybodies on earth), and when he sought to withdraw it, the sharp point of a bar in the overhang of the tree-guard had buried itself in the back of his paw, and held him fast. It seemed as if his leg was broken, and also dislocated at the shoulder. No wonder the poor little chap squalled for help. His mother, on the other side of the partition, was almost frantic with baffled sympathy, for she could do nothing to help him.
It did not take more than a quarter of a minute to have several men running for crowbars
