There is another curious little ant-eater, about the size of a squirrel,--which animal it resembles very much in its habits, and somewhat in its appearance. It possesses a prehensile tail, like that of the ateles and other American monkeys, with which it can swing itself from branch to branch. The tail is covered with fur, with the exception of about three inches of the under surface at the extremity. It has a small head, the snout sharpened and bent slightly downwards. A soft, curled, and pale yellow-brown fur clothes its body. It has only two claws on each of its fore-feet, the exterior one being stronger and larger than the interior. With these weapons it is enabled to hook out the small insects from the crevices of the bark, or grubs from the nests of bees or wasps. Like the squirrel, it sits upon its hind-limbs when eating, supporting itself with its prehensile tail. It may more properly be called the twisted-tail ant-eater (Cyclothurus didactylus). There is another small ant-eater found in Guiana, called the striped ant-eater (Myrmecophaga striata), from the marks on its body. Its general colour is of a tawny hue, the under parts being white. It is marked with broad, distinct, blackish transverse stripes, and the tail is annulated with similar ones. Its whole length, from the tip of its nose to the end of its tail, is about twenty inches. The snout is elongated, the upper mandible extending very little beyond the lower. THE SLOTH. That shaggy-haired creature, which may be seen hanging from the boughs of the lofty cecropia--the much-abused sloth--is generally described as a type of laziness, doomed to a helpless and wretched existence; but such an animal the all-beneficent Creator has not placed on the earth. To each animal that he has formed he has given an instinct and organisation specially adapted to their mode of life and the part they are destined to perform in the economy of nature. The sloth is formed to pass its time in trees, and to feed on the superabundant leaves, which would otherwise impede the circulation of the air, retard their growth, or bring on premature decay. This duty it shares with numberless other animals of the luxuriant forests of Tropical America. Place the sloth out of its natural position, and, as would be the case with other animals, it finds itself in a difficulty. Its destiny is to live in the dense forest, where, the branches of the trees meeting each other, it can move along from bough to bough, and make its way for considerable distances without difficulty, or having to descend to the ground. When by force or accident placed on the ground, it is unable to move along except at a slow and toilsome pace. When by any chance thus seen, its arms appear much too long, while its hind-legs, which are very short, look as if they could be bent almost to the shape of a cork-screw. Both fore and hind-legs, by their form, and the manner in