The two species of smaller ant-bears, or Tamanduas, obtain their sustenance in a similar manner, and in other respects are like their great congener; but they possess a power with which the latter is not gifted--that of climbing trees, and making their nests high up in the cavities of the trunks. They have the further power of being able to suspend themselves from the branches with their tails, which, like those of the opossums, are highly prehensile. The tamanduas do not live solely upon ant-diet. The wild bees, that build nests among the branches, are also objects of their attention; and their thick hairy skins appear to protect them from the stings of these insects. The smallest species--called the Ouatiri, or Two-toed Ant-eater--differs altogether from the three above-mentioned. It more resembles a little monkey, and is covered all over with a thick coat of soft woolly hair of a yellowish colour. It is also a tree-climber, possesses a naked prehensile tail, and makes its nest in a hole in the trunk, or in one of the larger branches. In Africa the ant-eaters are represented by several kinds of animals, differing essentially from each other in outward appearance, though all agreeing in their habits, or rather in the nature of their food. The Aard-vark, or Earth-hog, of the Cape colonists, is the most noted kind. This animal is a long, low-bodied creature, with sharp-pointed snout, and an immense whip-like tongue, which he is capable of projecting to a great distance, in the same manner as the tamanoir. His body is covered with a dense shock of reddish-brown hair; and he dwells in a burrow, which he can cleverly make for himself--hence his trivial name of Ground-hog. The other African ant-eaters are usually called Pangolins, or Manis. These are covered with scales that resemble suits of ancient armour; and on this account they have sometimes been confounded with the armadilloes, though the two kinds of creatures are altogether different in their habits. The pangolins possess, in common with the armadilloes, the power of rolling themselves into a ball whenever attacked by an enemy--a fashion not peculiar to pangolins and armadilloes, but also practised by our own well-known hedgehog. The Sloths belong to this group of mammalia; not that they have the slightest resemblance to the ant-eaters in any respect, but simply, as before stated, because they want the cutting teeth. They are not absolutely toothless, however, since they possess both canines and molars. With these they are enabled to masticate their food, which consists of the leaves and tender shoots of trees.