For their perpetual wanderings from branch to branch, Nature has bountifully endowed many of them, not only with robust and muscular limbs and large hands, whose moist palms facilitate the seizure of a bough, but in many cases also with a prehensile tail, which may deservedly be called a fifth hand, and is hardly less wonderful in its structure than the proboscis of the elephant covered with short hair, and completely bare underneath towards the end, this admirable organ rolls around the boughs as though it were a supple finger, and is at the same time so muscular that the monkey frequently swings by it from a branch, like the pendulum of a clock. Scarce has he grasped a bough with his long arms, when immediately coiling his fifth hand round the branch, he springs on to the next; and secure from a fall, he hurries so rapidly through the crowns of the highest trees that the sportsman's bullet has scarce time to reach him in his flight.

Of the beasts of prey that frequent these vast woods, the jaguar is the most formidable, resembling the panther by his spotted skin, but almost equalling the Bengal tiger in size and power. He roams about at all times of the day, swims overbroad rivers, and even in the water proves a most dangerous foe; for when driven to extremities he frequently turns against the boat which contains his assailants, and forces them to seek their safety by jumping overboard. Many an Indian, while wandering through thinly peopled districts, where swampy thickets alternate with open grass plains, has been torn to pieces by the jaguar; and in many a lonely plantation the inhabitants hardly venture to leave their enclosures after sunset, for fear of his attacks.