Another peculiar habit of the Capuchins was noticed. There was a little pool of water close by. Every now and then they ran to this pool and took a drink from it. But in drinking they did not apply their lips to the pool or lap like a dog. No; they lifted the water in the hollow of their hands—hence their specific name of chiropotes, or “hand-drinking monkeys.” They raised the water to their lips with great care, taking pains not to let a drop of it fall on their precious beards. From this habit of going so often to quench their thirst, the Capuchin monkeys have in some parts got the name of “hard-drinking monkeys.”
Apart from these was a troop of monkeys of a very different species. They were nearly of the same size, but more of the shape of the “ateles;” and their long tails, naked underneath and curling downward near the points, showed that, like them too, they possessed prehensile power in that member. Such was the fact, for they were “howling monkeys;” and some species of these can use the tail almost as adroitly as the “ateles” themselves. Those that our travellers saw were the “guaribas,” nearly black in colour, but with their hands covered with yellow hair, whence their name among the naturalists of “yellow-handed howler.”
They were seated in a ring when first observed, and one—apparently the chief of the band—was haranguing the rest; but so rapid were his articulations, and so changeable the tones of his voice, that any one would have thought the whole party were chattering together. This, in effect, did occur at intervals, and then you might have heard them to the distance of more than a mile. These creatures are enabled to produce this vast volume of voice in consequence of a hollow bony structure at the root of the tongue, which acts as a drum, and which gives them the appearance of a swelling, or goitre, in the throat. This is common to all the howling monkeys as well as the guaribas.
Besides the howlers there were other species—there were tamarins, and ouistitis, and the black coaitas of the genus “ateles,” all assembled around the juvia-tree. There were parrots, and macaws, and other nut-eating birds. High above in the air soared the great eagle watching his opportunity to swoop down on the pacas or agoutis, his natural prey. It was altogether a singular assemblage of wild animals—a zoological garden of the wilderness.
Our party, concealed by bushes, looked on for some time. They noticed that not one of all the living things was under the tree. On the contrary, they formed—monkeys, cavies, parrots, and all—a sort of ring around it, but at such a distance that none of the branches were above them! Why was this? Guapo knew the reason well, and before leaving their place of observation the others had an explanation of it.
While they stood gazing, one of the great globes was seen to fall from the tree above. The loud report as it struck the earth could have been heard a long way off. It caused the whole assemblage of living creatures to start. The macaws flapped their wings, the monkeys ran outward and then stopped, and a simultaneous cry from the voices of both birds and beasts echoed on all sides; and then there was a general chattering and screaming, as though the fall of the great pericarp had given pleasure to all parties.
It was very evident from this circumstance why both beasts and birds kept so far out from the tree. One of these fruits coming down like a nine-pound shot would have crushed any of them to atoms. Indeed, so heavy are they, that one of them falling from a height of fifty or sixty feet will dash out the brains of a man; and the Indians who gather them go under the trees with great wooden helmets that cover both the head and shoulders! It would be no boy's play to “go a nutting” in a wood of juvia-trees.
But how did the monkeys and birds get at the nuts? Neither of these could break open the outer shell. This is full half an inch thick, and so hard that it can scarcely be cut with a saw. How could either monkeys or birds open it?—that was the question put to Guapo.
“Watch them,” said Guapo.
All kept their eyes bent attentively on what was going on; and to their astonishment they observed that neither the monkeys nor the birds had anything to do with the opening of the shells. That was entirely the work of the rodent animals, the pacas, cavies, and agoutis. These with their fine cutting teeth laid open the thick pericarps, and whenever one was seen to have succeeded, and the triangular nuts were scattered upon the ground, then there was a general rush, and macaws, parrots, and monkeys scrambled for a share.